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All Lambda Solutions on Gang of Coders
Total of 371 Lambda Solutions
C# Lambda expressions: Why should I use them?
C#
C# 3.0
Lambda
What is the best resource for learning C# expression trees in depth?
C#
C# 3.0
Lambda
Expression Trees
List<object>.RemoveAll - How to create an appropriate Predicate
C#
Generics
Delegates
Lambda
Predicate
Java Lambda expressions
Java
Lambda
Java 8
PropertyExpression is missing
C#
.Net
Lambda
Expression
Expression Trees
How to change Runnable to lambda expression in Java with IntelliJ shortcut
Java
Intellij Idea
Lambda
Trying to understand lambdas
C++
Lambda
Pandas - combine column values into a list in a new column
Python
List
Pandas
Lambda
Apply
Overload resolution for inherited functions
C++
Templates
Inheritance
Lambda
Overloading
When not to use lambda expressions
C#
.Net
Lambda
Anonymous Methods
Lambda Expression in Powershell
Powershell
Lambda
How does this lambda/yield/generator comprehension work?
Python
Ssh
Lambda
Functional Programming
Generator
How do you assign a lambda to a variable in Java 8?
Java
Lambda
Java 8
How to apply multiple predicates to a java.util.Stream?
Java
Lambda
Java 8
Java Stream
Predicate
Java 8 stream unpredictable performance drop with no obvious reason
Java
Performance
Lambda
Java Stream
Jmh
Is it possible to catch an exception of lambda type?
C++
Exception
Lambda
How to get the address of a C++ lambda function within the lambda itself?
C++
C++11
Lambda
C++14
C++17
Why use `std::bind_front` over lambdas in C++20?
C++
Lambda
C++20
Stdbind
Bind Front
Good explanation of "Combinators" (For non mathematicians)
Function
Lambda
Combinators
Y Combinator
Why is it bad to use an iteration variable in a lambda expression
C#
vb.net
Lambda
Iteration
Warnings
lambda-like functions in R?
R
Lambda
Anonymous functions using GCC statement expressions
C
Gcc
Lambda
Anonymous Function
How did lambda expressions get their name?
Lambda
Different generic behaviour when using lambda instead of explicit anonymous inner class
Java
Generics
Lambda
Java 8
What is the easiest way to get the property value from a passed lambda expression in an extension method for HtmlHelper?
asp.net Mvc
Recursion
Lambda
Extension Methods
Html Helper
Choose Python function to call based on a regex
Python
Anonymous Function
Lambda
Passing C++ Lambda Functions
C++
Lambda
A positive lambda: '+[]{}' - What sorcery is this?
C++
C++11
Lambda
Operator Overloading
Language Lawyer
Java 8 Streams: multiple filters vs. complex condition
Java
Lambda
Filter
Java 8
Java Stream
How to configure Conditional Mapping in AutoMapper?
C#
Lambda
Automapper
Automapper 2
Group by and sum objects like in SQL with Java lambdas?
Java
Lambda
Java 8
Java Stream
Lazy field initialization with lambdas
Lambda
Java 8
Lazy Initialization
java.lang.NullPointerException is thrown using a method-reference but not a lambda expression
Java
Lambda
Nullpointerexception
Java 8
Method Reference
Combining two expressions (Expression<Func<T, bool>>)
C#
Linq
Lambda
Expression
Most efficient way to test equality of lambda expressions
C#
Lambda
How do I create a list of lambdas (in a list comprehension/for loop)?
Python
Lambda
Scope
Closures
List Comprehension
Rails: named_scope, lambda and blocks
Ruby on-Rails
Ruby
Lambda
One shot events using Lambda in C#
C#
Events
Lambda
Get the property, as a string, from an Expression<Func<TModel,TProperty>>
C#
Lambda
Visual Studio Immediate Window - Lambda Expressions Aren't Allowed - Is there a Work-around or Alternative?
C#
.Net
Visual Studio-2010
Lambda
Immediate Window
Entityframework Join using join method and lambdas
Entity Framework
Join
Lambda
I want to understand the lambda expression in @Html.DisplayFor(modelItem => item.FirstName)
C#
asp.net Mvc
Razor
Lambda
Html Helper
FirstOrDefault returns NullReferenceException if no match is found
C#
Lambda
Cannot convert lambda expression to type 'object' because it is not a delegate type
C#
Linq
Lambda
Delegates
Where is the Java 8 Consumer with more than one argument?
Java
C#
Lambda
Java 8
Java Stream
Convert String array to Map using Java 8 Lambda expressions
Java
Lambda
Functional Programming
Java 8
Java Stream
Kotlin : safe lambdas (no memory leak)?
Android
Lambda
Memory Leaks
Kotlin
Java 8 Lambda: Comparator
Java
Lambda
Java 8
Comparator
How can I assign a Func<> conditionally between lambdas using the conditional ternary operator?
C#
Lambda
Conditional Operator
What is the fastest way to determine if a row exists using Linq to SQL?
C#
Linq to-Sql
Lambda
Why does C++11's lambda require "mutable" keyword for capture-by-value, by default?
C++
Lambda
C++11
Can the 'type' of a lambda expression be expressed?
C++
Stl
Lambda
C++11
How to capture a unique_ptr into a lambda expression?
C++
Lambda
C++11
Unique Ptr
Passing capturing lambda as function pointer
C++
C++11
Lambda
Function Pointers
What does "DisplayClass" name mean when calling lambda?
C#
.Net
Lambda
Reflection type inference on Java 8 Lambdas
Java
Generics
Reflection
Lambda
Java 8
Using lambda to format Map into String
Java
Dictionary
Lambda
Java 8
How to use Fluent Assertions to test for exception in inequality tests?
C#
Unit Testing
Lambda
Nunit
Fluent Assertions
Lambdas from a list comprehension are returning a lambda when called
Python
Lambda
Sort List<DateTime> Descending
C#
Sorting
Lambda
Lambda Expression using Foreach Clause
C#
.Net 3.5
Lambda
Foreach
Mutating the expression tree of a predicate to target another type
C#
Linq
Lambda
Expression Trees
Reduce list of Python objects to dict of object.id -> object
Python
Lambda
Dictionary
Sorting a list using Lambda/Linq to objects
C#
Linq
Lambda
Linq to-Objects
Python lambda with if but without else
Python
Lambda
Inline If
Filter Java Stream to 1 and only 1 element
Java
Lambda
Java 8
Java Stream
How to map to multiple elements with Java 8 streams?
Java
Lambda
Closures
Java 8
Java Stream
Why doesn't java.util.Collection implement the new Stream interface?
Java
Lambda
Functional Programming
Java 8
Java Stream
Java 8 Lambda filter by Lists
Java
Lambda
Java 8
New object instantiation when using Java 8 streams
Java
Lambda
Java 8
Java Stream
Method Reference
LINQ identity function
C#
Linq
Lambda
Linq to-Objects
Expression.Lambda and query generation at runtime, simplest "Where" example
C#
.Net
Lambda
Expression Trees
Dynamic Language-Runtime
Using Java 8's Optional with Stream::flatMap
Java
Lambda
Java 8
Java Stream
Construct LambdaExpression for nested property from string
C#
.Net
Linq
Lambda
Expression Trees
Does Java 8 Support Closures?
Java
Lambda
Closures
Java 8
Recursive lambda functions in C++14
C++
Lambda
C++14
How to correctly determine that an object is a lambda?
Java
Lambda
Java 8
How is "int main(){(([](){})());}" valid C++?
C++
C++11
Lambda
Syntax
Java 8 lambda comparator with null value check
Lambda
Java 8
E731 do not assign a lambda expression, use a def
Python
Lambda
Flake8
Pep
Java 8 lambda Void argument
Java
Lambda
Java 8
Void
Where do I mark a lambda expression async?
C#
Lambda
Resharper
Windows Store-Apps
Async Await
How to merge a list of lists with same type of items to a single list of items?
C#
Linq
Lambda
convert a list of objects from one type to another using lambda expression
C#
Generics
Lambda
OrderBy descending in Lambda expression?
Linq
Lambda
Can lambda functions be templated?
C++
Templates
Lambda
C++11
Why would you use Expression<Func<T>> rather than Func<T>?
C#
Delegates
Lambda
Expression Trees
How to remove a lambda event handler
C#
Events
Event Handling
Lambda
Multiple Order By with LINQ
C#
Linq
Lambda
Java 8 List<V> into Map<K, V>
Java
Lambda
Java 8
Java Stream
python max function using 'key' and lambda expression
Python
Function
Lambda
How to use a Java8 lambda to sort a stream in reverse order?
Java
Lambda
Java 8
Java Stream
List comprehension vs. lambda + filter
Python
List
Functional Programming
Filter
Lambda
How are lambdas useful?
Python
Function
Lambda
Closures
Java "lambda expressions not supported at this language level"
Java
Intellij Idea
Lambda
Java 8
Anonymous recursive PHP functions
Php
Recursion
Lambda
Closures
Anonymous Function
Filter values only if not null using lambda in Java8
Java
Lambda
Nullpointerexception
Null
Java 8
What is the difference between a 'closure' and a 'lambda'?
Function
Lambda
Functional Programming
Closures
Max return value if empty query
C#
.Net
Entity Framework
Linq
Lambda
Local function vs Lambda C# 7.0
C#
Function
Lambda
C# 7.0
Does Java SE 8 have Pairs or Tuples?
Java
Lambda
Functional Programming
Java 8
Java Stream
Does a lambda expression create an object on the heap every time it's executed?
Java
Lambda
Java 8
`break` and `continue` in `forEach` in Kotlin
Loops
Foreach
Lambda
Kotlin
Lambda capture as const reference?
C++
C++11
Lambda
C++14
In C#, What is a monad?
C#
C# 3.0
Lambda
Monads
Variable used in lambda expression should be final or effectively final
Java
Lambda
Cannot use ref or out parameter in lambda expressions
C#
Lambda
Syntax behind sorted(key=lambda: ...)
Python
Sorting
Lambda
Custom Function
Java 8: Lambda-Streams, Filter by Method with Exception
Java
Exception Handling
Lambda
Java 8
Recursive lambda functions in C++11
C++
C++11
Lambda
delegate keyword vs. lambda notation
C#
.Net
Delegates
Lambda
Anonymous Methods
How to convert a String to its equivalent LINQ Expression Tree?
C#
Lambda
Antlr
Dsl
Predicate
Why can lambdas be better optimized by the compiler than plain functions?
C++
Optimization
C++11
Lambda
Compiler Optimization
Can a java lambda have more than 1 parameter?
Java
Lambda
Java 8
Move capture in lambda
C++
Lambda
C++11
Rvalue Reference
What is a lambda (function)?
Lambda
Language Agnostic
Computer Science
Terminology
Theory
Distinct() with lambda?
C#
C# 3.0
Lambda
Extension Methods
LINQ: "contains" and a Lambda query
C#
.Net
List
Linq
Lambda
Using member variable in lambda capture list inside a member function
C++
Visual Studio-2010
Lambda
C++11
In Java 8 how do I transform a Map<K,V> to another Map<K,V> using a lambda?
Java
Map
Lambda
Java 8
Java Stream
How to sort with a lambda?
C++
Sorting
Lambda
Char
Constants
What are functional interfaces used for in Java 8?
Java
Lambda
Java 8
Functional Interface
Why doesn't print work in a lambda?
Python
Printing
Lambda
Python 2.x
What is the type of lambda when deduced with "auto" in C++11?
C++
Lambda
C++11
Typeof
Auto
Modifying local variable from inside lambda
Java
Lambda
Java 8
How to serialize a lambda?
Java
Serialization
Lambda
Java 8
Zipping streams using JDK8 with lambda (java.util.stream.Streams.zip)
Lambda
Functional Programming
Java 8
Lazy Evaluation
Java Stream
String.IsNullOrWhiteSpace in LINQ Expression
C#
Linq
Lambda
Null
Linq to-Entities
How do I pronounce "=>" as used in lambda expressions in .Net
C#
.Net
Lambda
Conventions
Performance of foreach, array_map with lambda and array_map with static function
Php
Performance
Foreach
Lambda
Array Map
Built-in Java 8 predicate that always returns true?
Java
Lambda
Java 8
Predicate
What is a 'SAM type' in Java?
Java
Lambda
Java 8
Terminology
Copy a stream to avoid "stream has already been operated upon or closed"
Java
Lambda
Java 8
Java Stream
Is it possible to type hint a lambda function?
Python
Lambda
Lambda expression vs method reference
Java
Intellij Idea
Lambda
Java 8
Side Effects
Why can't an anonymous method be assigned to var?
C#
.Net 3.5
Delegates
Lambda
Implicit Typing
Java 8: Where is TriFunction (and kin) in java.util.function? Or what is the alternative?
Java
Lambda
Java 8
Understanding Spliterator, Collector and Stream in Java 8
Java
Lambda
Java 8
Spliterator
Optional orElse Optional in Java
Java
Lambda
Java 8
Optional
Java 9
Can a C# lambda expression have more than one statement?
C#
Lambda
How do I use the new computeIfAbsent function?
Java
Dictionary
Lambda
Java 8
Group by with multiple columns using lambda
C#
.Net
Entity Framework
Lambda
Is it possible to figure out the parameter type and return type of a lambda?
C++
Lambda
Metaprogramming
C++11
Traits
converting a .net Func<T> to a .net Expression<Func<T>>
C#
.Net
Lambda
Expression
Func
How to check if element exists using a lambda expression?
Java
Java 8
Lambda
Getting all types that implement an interface
C#
Optimization
Reflection
Lambda
C# 3.0
Do c++11 lambdas capture variables they don't use?
C++
Lambda
C++11
Is this object-lifetime-extending-closure a C# compiler bug?
C#
Memory Leaks
Lambda
Closures
Object Lifetime
Comparator.reversed() does not compile using lambda
Java
Lambda
Java 8
Comparator
Method Reference
Uses of Action delegate in C#
C#
Lambda
Delegates
Action
Is there a way to specify an "empty" C# lambda expression?
C#
Lambda
How to debug stream().map(...) with lambda expressions?
Java
Debugging
Lambda
Java 8
Order a List (C#) by many fields?
C#
List
Lambda
Sql Order-By
Finding the average of a list
Python
List
Lambda
Average
Reduce
C# lambda expression reverse direction <=
C#
Lambda
Operators
Proper usage of Optional.ifPresent()
Java
Lambda
Java 8
Optional
Lambda returning itself: is this legal?
C++
Lambda
Language Lawyer
C++17
Auto
Assignment inside lambda expression in Python
Python
Lambda
Expression
Variable Assignment
How does generic lambda work in C++14?
C++
Lambda
Auto
C++14
Cannot convert lambda expression to type 'string' because it is not a delegate type
C#
asp.net
Linq
Lambda
Why must a lambda expression be cast when supplied as a plain Delegate parameter
C#
C# 3.0
Delegates
Lambda
How to set a Django model field's default value to a function call / callable (e.g., a date relative to the time of model object creation)
Django
Django Models
Parameters
Lambda
Default
Lambda capture and parameter with same name - who shadows the other? (clang vs gcc)
C++
C++11
Lambda
Language Lawyer
Shadowing
How can I get every nth item from a List<T>?
C#
Linq
List
Lambda
Why do some C# lambda expressions compile to static methods?
C#
.Net
Reflection
Lambda
How to create an instance of anonymous interface in Kotlin?
Java
Lambda
Kotlin
Anonymous
Retrieving Property name from lambda expression
C#
Linq
Lambda
Expression Trees
Java 8 Lambda function that throws exception?
Java
Lambda
Java 8
Do lambda expressions have any use other than saving lines of code?
Java
Lambda
Java 8
Which is more preferable to use: lambda functions or nested functions ('def')?
Python
Syntax
Function
Lambda
c++0x: proper way to receive a lambda as parameter by reference
C++
Lambda
C++11
Function Prototypes
Function Parameter
_=> what does this underscore mean in Lambda expressions?
C#
C# 4.0
Lambda
Java8 Lambdas vs Anonymous classes
Java
Lambda
Java 8
Anonymous Class
What does lambda with 2 arrows mean in Java 8?
Java
Lambda
Java 8
Currying
C# Pass Lambda Expression as Method Parameter
C#
Linq
Lambda
Using lambda expressions for event handlers
C#
Performance
Events
Lambda
Explicit Return Type of Lambda
C++
Visual C++
Lambda
C++11
Visual C++-2012
Is it Linq or Lambda?
C#
Linq
Lambda
Return from lambda forEach() in java
Java
Foreach
Lambda
Java 8
Return Type
Lambda Expression and generic defined only in method
Java
Generics
Lambda
Java 8
Java 8 lambda get and remove element from list
Java
Lambda
Java 8
Java Stream
C++ lambda with captures as a function pointer
C++
Lambda
Function Pointers
C++11
How is std::function implemented?
C++
C++11
Lambda
Lambda expression to convert array/List of String to array/List of Integers
Java
Arrays
Collections
Lambda
Java 8
Cell-var-from-loop warning from Pylint
Python
Lambda
Closures
C++0x lambda capture by value always const?
C++
Lambda
Constants
C++11
Join/Where with LINQ and Lambda
C#
Linq
Join
Lambda
Why do arrow functions not have the arguments array?
Javascript
Lambda
Ecmascript 6
Arguments
Anonymous Function
Java 8, Streams to find the duplicate elements
Java
Lambda
Java 8
Java Stream
Resolving ambiguous overload on function pointer and std::function for a lambda using + (unary plus)
C++
C++11
Lambda
Overloading
Python's lambda with underscore for an argument?
Python
Lambda
How to Convert all strings in List<string> to lower case using LINQ?
C#
Linq
Lambda
Foreach
C++11 lambda implementation and memory model
C++
Memory
Lambda
C++11
Java 8: preferred way to count iterations of a lambda?
Java
Lambda
Java 8
Java Stream
Lambda implicit capture fails with variable declared from structured binding
C++
Lambda
Visual Studio-2017
C++17
Structured Bindings
A suitable 'do nothing' lambda expression in python?
Python
Lambda
Task.Run with Parameter(s)?
C#
Lambda
Task Parallel-Library
Task
Multiple null checks in Java 8
Java
Lambda
Java 8
Java Stream
Optional
_ (underscore) is a reserved keyword
Java
Lambda
Java 8
What exactly does the anonymous JavaScript function f => f do?
Javascript
Lambda
Ecmascript 6
Why do we need fibers
Ruby
Lambda
Closures
Fibers
Proc
How to perform Join between multiple tables in LINQ lambda
C#
Linq
Join
Lambda
Multiple Tables
What is the difference between lambdas and delegates in the .NET Framework?
C#
.Net
Lambda
Why can't I capture this by-reference ('&this') in lambda?
C++
C++11
Lambda
What does [=] mean in C++?
C++
C++11
Lambda
Function returning a lambda expression
C++
Function
C++11
Lambda
Does Go have lambda expressions or anything similar?
Go
Lambda
Wrapping StopWatch timing with a delegate or lambda?
C#
.Net
Delegates
Lambda
Retrieving a List from a java.util.stream.Stream in Java 8
Java
Lambda
Collections
Java 8
Java Stream
Why does Stream.allMatch() return true for an empty stream?
Java
Lambda
Java 8
Java Stream
What is the difference between Func<string,string> and delegate?
C#
asp.net
Delegates
Lambda
Visual Studio debugging "quick watch" tool and lambda expressions
C#
Visual Studio
Debugging
Lambda
List<T> OrderBy Alphabetical Order
C#
Generics
List
Lambda
Sorting
Using 'return' in a Ruby block
Ruby
Lambda
Return
Proc Object
How to declare a function that accepts a lambda?
C++
Lambda
C++11
Why can't I create a vector of lambdas (of the same type) in C++11?
C++
Vector
Lambda
C++11
How to return value with anonymous method?
C#
.Net
Lambda
How to map values in a map in Java 8?
Java
Map
Lambda
Java 8
Java 8 Supplier with arguments in the constructor
Java
Lambda
Functional Programming
Java 8
Functional Interface
When should I use arrow functions in ECMAScript 6?
Javascript
Lambda
Ecmascript 6
Ecmascript Harmony
Arrow Functions
Very confused by Java 8 Comparator type inference
Java
Sorting
Lambda
Java 8
Comparator
What is a Lambda?
Language Agnostic
Lambda
Computer Science
Terminology
What is this 'Lambda' everyone keeps speaking of?
Lambda
What is the purpose of std::function, and how to use it?
C++
C++11
Lambda
Function Pointers
Std Function
Java 8 Lambda Expressions - what about multiple methods in nested class
Java
Lambda
Java 8
Anonymous Class
Why does a lambda have a size of 1 byte?
C++
C++11
Lambda
C++14
Sizeof
Any reason not to use global lambdas?
C++
Lambda
Is there a way to perform "if" in python's lambda?
Python
Lambda
Python 2.6
What is a lambda language?
Javascript
Lambda
Using Include in Entity Framework 4 with lambda expressions
C#
Entity Framework-4
Lambda
Compiled C# Lambda Expressions Performance
C#
Performance
Lambda
Expression Trees
How to get the MethodInfo of a Java 8 method reference?
Java
Reflection
Lambda
Java 8
forEach loop Java 8 for Map entry set
Java
Lambda
Java 8
Python lambda's binding to local values
Python
Closures
Lambda
Using lambda expression in place of IComparer argument
C#
.Net
Lambda
Icomparer
Using Func delegate with Async method
C#
Asynchronous
Lambda
Function pointers, Closures, and Lambda
C
Lisp
Lambda
Computer Science
Closures
Cannot use a lambda expression as an argument to a dynamically dispatched operation without first casting it to a delegate or expression tree type
C#
Linq
Lambda
.Net 4.5
Is there a reason for C#'s reuse of the variable in a foreach?
C#
Foreach
Lambda
Scope
Anonymous Methods
Java 8: Formatting lambda with newlines and indentation
Java
Eclipse
Lambda
Java 8
Java Stream
How do I define a method which takes a lambda as a parameter in Java 8?
Java
Lambda
Java 8
Why use lambda functions?
Python
Lambda
Is there a way to compare lambdas?
Java
Lambda
Java 8
Java 8 Filter Array Using Lambda
Java
Lambda
Java 8
Why does this Java 8 lambda fail to compile?
Java
Lambda
Compiler Errors
Java 8
Void
C# 7 tuples and lambdas
C#
Lambda
Tuples
C# 7.0
Reflecting parameter name: abuse of C# lambda expressions or syntax brilliance?
C#
asp.net Mvc
Lambda
Mvccontrib
Collectors.toMap() keyMapper -- more succinct expression?
Java
Collections
Lambda
Java 8
Java Stream
How to get a range of items from stream using Java 8 lambda?
Java
Filter
Lambda
Java 8
Chaining Optionals in Java 8
Java
Lambda
Java 8
Optional
No Multiline Lambda in Python: Why not?
Python
Syntax
Lambda
Dispatcher.BeginInvoke: Cannot convert lambda to System.Delegate
C#
Wpf
Lambda
Dispatcher
Begininvoke
Find() and First() throws exceptions, how to return null instead?
C#
.Net
Linq
Lambda
How to call a closure that is a class variable?
Php
Lambda
Closures
Anonymous Function
Is there a method reference for a no-op (NOP) that can be used for anything lambda?
Java
Lambda
Functional Programming
Java 8
Can lambda functions be recursive?
C++
Recursion
C++11
Lambda
Capturing a reference by reference in a C++11 lambda
C++
C++11
Lambda
Language Lawyer
Passing lambda instead of interface
Lambda
Kotlin
Error: variable "cannot be implicitly captured because no default capture mode has been specified"
C++
C++11
Lambda
Using GroupBy, Count and Sum in LINQ Lambda Expressions
Linq
Count
Lambda
Group By
Sum
C++11 std::set lambda comparison function
C++
Stl
C++11
Lambda
Std Function
How to write a VB.Net Lambda expression
vb.net
Linq
Lambda
Java 8 Collectors.toMap SortedMap
Java
Lambda
Java 8
Java Stream
Collectors
Can a lambda function call itself recursively in Python?
Python
Recursion
Lambda
Y Combinator
Python lambda does not accept tuple argument
Python
Lambda
Tuples
Lambdas: local variables need final, instance variables don't
Java
Lambda
Java 8
Final
Why filter() after flatMap() is "not completely" lazy in Java streams?
Java
Lambda
Java 8
Java Stream
Precise definition of "functional interface" in Java 8
Java
Lambda
Java 8
Abstract
Functional Interface
What kind of List<E> does Collectors.toList() return?
Java
List
Lambda
Java 8
Collectors
Iterate an Enumeration in Java 8
Java
Lambda
Iteration
Enumeration
Java 8
Java 8 method reference unhandled exception
Java
Lambda
Java 8
Why is a const variable sometimes not required to be captured in a lambda?
C++
Lambda
Constants
Language Lawyer
What is a lambda expression in C++11?
C++
Lambda
C++11
C++ Faq
Java8 Lambdas and Exceptions
Java
Lambda
Java 8
Entity Framework - Cannot convert lambda expression to type 'string' because it is not a delegate type
C#
.Net
Entity Framework
Lambda
Why use std::bind over lambdas in C++14?
C++
Lambda
Bind
C++14
Java 8 stream map on entry set
Java
Lambda
Java Stream
What is the lifetime of a C++ lambda expression?
C++
Lambda
C++11
Should I copy an std::function or can I always take a reference to it?
C++
Lambda
Std Function
How to compare two functions for equivalence, as in (λx.2*x) == (λx.x+x)?
Haskell
Clojure
Lambda
Functional Programming
Lisp
A lambda's return type can be deduced by the return value, so why can't a function's?
C++
Function
C++11
Lambda
Auto
Lambda this reference in java
Java
Lambda
Java 8
What does the -> <- operator do?
Java
Syntax
Lambda
Obfuscation
Java 8
Can Python pickle lambda functions?
Python
Python 2.7
Lambda
Pickle
Statement lambda can be replaced with expression lambda
Java
Spring
Spring Mvc
Lambda
Optional
takeWhile() working differently with flatmap
Java
Lambda
Java Stream
Java 9
What is key=lambda
Python
Lambda
Key
Stream.peek() method in Java 8 vs Java 9
Java
Lambda
Java 8
Java 9
Peek
Why can't the var keyword in Java be assigned a lambda expression?
Java
Lambda
Java 10
Break or return from Java 8 stream forEach?
Java
Foreach
Lambda
Java 8
Fastest way to Remove Duplicate Value from a list<> by lambda
C#
List
C# 4.0
Lambda
Generic List
Java 8 pass method as parameter
Java
Lambda
Java 8
Method Reference
Java 8: sort list of objects by attribute without custom comparator
List
Sorting
Lambda
Java 8
C++ Lambdas: Difference between "mutable" and capture-by-reference
C++
C++11
Lambda
Difference between final and effectively final
Java
Lambda
Inner Classes
Final
Java 8
How do I create an expression tree to represent 'String.Contains("term")' in C#?
C#
.Net
Lambda
Expression Trees
Access the value of a member expression
C#
Linq
Lambda
Expression Trees
How to convert a lambda to an std::function using templates
C++
Function
Templates
C++11
Lambda
Java Lambda Stream Distinct() on arbitrary key?
Java
Lambda
Java 8
Trouble passing in lambda to apply for pandas DataFrame
Python
Pandas
Dataframe
Lambda
Apply
Why are Java 8 lambdas invoked using invokedynamic?
Java
Lambda
Jvm
Java 8
Bytecode
Lambda that does absolutely nothing
Java
Lambda
Java 8
Runnable
What does it mean that a Listener can be replaced with lambda?
Android
Lambda
Android Alertdialog
Java 8 optional: ifPresent return object orElseThrow exception
Java
Lambda
Optional
Lambda expressions as class template parameters
C++
Templates
Lambda
C++11
How to use Lambda in LINQ select statement
C#
asp.net Mvc
Linq
Lambda
Conditional statement in a one line lambda function in python?
Python
If Statement
Lambda
Ternary Operator
Conditional Operator
Can using a lambda in header files violate the ODR?
C++
C++11
Lambda
Language Lawyer
One Definition-Rule
How to write lambda methods in Objective-C?
Objective C
Functional Programming
Lambda
Java 8: Mandatory checked exceptions handling in lambda expressions. Why mandatory, not optional?
Java
Lambda
Checked Exceptions
Java 8
Are lambdas inlined like functions in C++?
C++
C++11
Lambda
Stl
Lambda functions as base classes
C++
C++11
Lambda
In a lambda, does a by-value capture of a reference copy the underlying object?
C++
C++11
Lambda
Lambda-Over-Lambda in C++14
C++
Lambda
C++14
C++11 lambda as member variable?
C++
C++11
Lambda
Passing a lambda as a block
Ruby
Lambda
Implement recursive lambda function using Java 8
Java
Recursion
Lambda
Java 8
How to create an std::function from a move-capturing lambda expression?
C++
Lambda
Std
C++14
Enums in lambda expressions are compiled differently; consequence of overload resolution improvements?
C#
Lambda
Enums
Roslyn
C# 6.0
Can I specify my explicit type comparator inline?
C#
.Net
Linq
Lambda
What use is lambda in PHP?
Php
Lambda
Capturing perfectly-forwarded variable in lambda
C++
C++11
Lambda
C++14
Perfect Forwarding
Java 8 stream map to list of keys sorted by values
Java
Collections
Lambda
Java 8
Java Stream
Recursive lambda expression to traverse a tree in C#
C#
Recursion
Lambda
Is constexpr supported with lambda functions / expressions?
C++
C++11
Lambda
Constexpr
Declare a delegate type in Typescript
C#
Types
Lambda
Delegates
Typescript
The 'await' operator can only be used within an async lambda expression
C#
Lambda
Modal Dialog
Windows Store-Apps
Async Await
java.util.stream with ResultSet
Java
Jdbc
Lambda
Java Stream
Jooq
I cannot pass lambda as std::function
C++
C++11
Lambda
How to cast Expression<Func<T, DateTime>> to Expression<Func<T, object>>
C#
Lambda
lambdas require capturing 'this' to call static member function?
C++
Lambda
C++11
Lambda as function parameter
C++
Lambda
C++11
What is the scope of a lambda variable in C#?
C#
Lambda
Scope
Change some value inside the List<T>
C#
Linq
Lambda
Expression
Python pandas - filter rows after groupby
Python
Pandas
Filter
Lambda
Group By
Kotlin: Use a lambda in place of a functional interface?
Java
Intellij Idea
Lambda
Kotlin
What is call/cc?
Lambda
Scheme
Continuations
Lambda Calculus
Callcc
Bind Vs Lambda?
C++
Functional Programming
Lambda
C++11
Bind
What's the purpose of the Expression class?
C#
Lambda
Expression Trees
How can I throw CHECKED exceptions from inside Java 8 streams?
Java
Lambda
Java 8
Java Stream
Checked Exceptions
When to use lambda, when to use Proc.new?
Ruby
Lambda
Proc
Python one-line "for" expression
Python
Lambda
call a function for each value in a generic c# collection
C#
Linq
Lambda
Generics
C++ priority_queue with lambda comparator error
C++
Stl
Lambda
C++11
Priority Queue
Redefining lambdas not allowed in C++11, why?
C++
C++11
Lambda
Language Lawyer
How do I replace an anonymous class with a lambda in Java?
Java
Lambda
Anonymous Class
How do static variables in lambda function objects work?
C++
C++11
Static
Lambda
Python Try Catch Block inside lambda
Python
Lambda
Try Catch
Sorting by property in Java 8 stream
Java
Sorting
Lambda
Java 8
Java Stream
Why do Consumers accept lambdas with statement bodies but not expression bodies?
Java
Lambda
Java 8
Type Inference
LINQ - Query syntax vs method chains & lambda
C#
.Net
Linq
Lambda
Linq Query-Syntax
Does [=] imply that all local variables will be copied?
C++
C++11
Lambda
Capture
Thread.sleep inside infinite while loop in lambda doesn't require 'catch (InterruptedException)' - why not?
Java
Multithreading
Lambda
Compilation
Functional Interface
LINQ: Dot Notation vs Query Expression
Linq
.Net 3.5
Lambda
Expression of type 'System.Int32' cannot be used for return type 'System.Object'
C#
.Net
Lambda
What do lambda function closures capture?
Python
Lambda
Closures
Missing Entity Framework Include(lambda) extension
.Net
Entity Framework
Lambda
specify default value of std::function
C++
Lambda
Why can't we call Thread#sleep() directly inside a Lambda function?
Java
Multithreading
Lambda
Java 8
What is the Linq.First equivalent in PowerShell?
C#
Linq
Powershell
Lambda
Are Lambda expressions in C# closures?
C#
Lambda
Is it possible to set a breakpoint in anonymous functions?
C#
Visual Studio-2010
Lambda
Anonymous Function
Annotating the functional interface of a Lambda Expression
Java
Lambda
Annotations
Java 8
Using return inside a lambda?
Lambda
Kotlin
Multiple Where clauses in Lambda expressions
C#
.Net
Lambda
Java 8 lambdas, Function.identity() or t->t
Java
Lambda
Java 8
Java Stream
How can I store a lambda expression as a field of a class in C++11?
C++
Class
Lambda
C++11
Field
C++11 does not deduce type when std::function or lambda functions are involved
C++
Templates
Lambda
C++11
How will Java lambda functions be compiled?
Java
Lambda
Java 8
Stream of boolean values, is any true?
Java
Lambda
Parallel Processing
Java 8
Java Stream
Java 8 Lambda Stream forEach with multiple statements
Java
Lambda
Java 8