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All For Loop Solutions on Gang of Coders
Total of 219 For Loop Solutions
Loop through an array in JavaScript
Javascript
Arrays
Loops
For Loop
How do I loop through or enumerate a JavaScript object?
Javascript
Loops
For Loop
Each
Why is printing "B" dramatically slower than printing "#"?
Java
Performance
Loops
For Loop
system.out
Why is using "for...in" for array iteration a bad idea?
Javascript
Arrays
Loops
For Loop
Iteration
How do I iterate over a range of numbers defined by variables in Bash?
Bash
Shell
For Loop
Syntax
How to iterate through two lists in parallel?
Python
List
For Loop
Iterator
What is the difference between ++i and i++?
C
For Loop
Post Increment
Pre Increment
A for-loop to iterate over an enum in Java
Java
Loops
For Loop
Enums
What is the difference between ( for... in ) and ( for... of ) statements?
Javascript
Arrays
For Loop
Object
How to loop over files in directory and change path and add suffix to filename
Bash
For Loop
Filenames
Glob
Why does python use 'else' after for and while loops?
Python
If Statement
For Loop
For Else
Java 8 Iterable.forEach() vs foreach loop
Java
For Loop
Java 8
Java Stream
Get loop counter/index using for…of syntax in JavaScript
Javascript
For Loop
Foreach
Counter
Iterate all files in a directory using a 'for' loop
Windows
Batch File
For Loop
Cmd
In .NET, which loop runs faster, 'for' or 'foreach'?
C#
.Net
Performance
For Loop
Why does the order of the loops affect performance when iterating over a 2D array?
C
Performance
For Loop
Optimization
Cpu Cache
How to use range-based for() loop with std::map?
C++
C++11
For Loop
Dictionary
What is the most efficient way to loop through dataframes with pandas?
Python
Pandas
Performance
Dataframe
For Loop
Can I use break to exit multiple nested 'for' loops?
C++
For Loop
Break
Nested Loops
Pythonic way to combine for-loop and if-statement
Python
Loops
If Statement
For Loop
Django - iterate number in for loop of a template
Django
For Loop
Django Templates
How to get the selected radio button’s value?
Javascript
Html
For Loop
Radio Button
Difference between pre-increment and post-increment in a loop?
For Loop
Language Agnostic
Post Increment
Pre Increment
Get loop count inside a for-loop
Python
For Loop
Is there a way to access an iteration-counter in Java's for-each loop?
Java
Loops
For Loop
Foreach
How to make my custom type to work with "range-based for loops"?
C++
For Loop
C++11
Customization
How do I break out of a loop in Scala?
Scala
For Loop
Break
Tail Recursion
Is it possible to declare two variables of different types in a for loop?
C++
Scope
Declaration
For Loop
Are loops really faster in reverse?
Javascript
Performance
Loops
For Loop
While Loop
How do I loop through a list by twos?
Python
List
Loops
For Loop
Iteration
For every character in string
C++
Loops
For Loop
Character
How to check if all elements of a list match a condition?
Python
List
For Loop
While Loop
How to get the current index in for each Kotlin
Android
For Loop
Kotlin
Why use iterators instead of array indices?
C++
For Loop
Stl
Iterator
Containers
What is the pythonic way to detect the last element in a 'for' loop?
For Loop
Python
Idioms
Fencepost
How to use continue in jQuery each() loop?
Jquery
For Loop
Each
Breaking out of a nested loop
C#
For Loop
Nested Loops
Iterate through a C++ Vector using a 'for' loop
C++
Coding Style
For Loop
Iterator
Check if object value exists within a Javascript array of objects and if not add a new object to array
Javascript
Arrays
Object
For Loop
Foreach
Post-increment and pre-increment within a 'for' loop produce same output
C++
C
For Loop
Operator Precedence
Elements order in a "for (… in …)" loop
Javascript
For Loop
Is it possible to implement a Python for range loop without an iterator variable?
Python
Loops
For Loop
Range
How can I loop through a List<T> and grab each item?
C#
For Loop
Collections
TypeScript for ... of with index / key?
For Loop
Foreach
Typescript
Are list-comprehensions and functional functions faster than "for loops"?
Python
Performance
For Loop
List Comprehension
Map Function
GoTo Next Iteration in For Loop in java
Java
For Loop
How to efficiently remove all null elements from a ArrayList or String Array?
Java
Performance
Loops
For Loop
Arraylist
Is there a technical reason to use > (<) instead of != when incrementing by 1 in a 'for' loop?
C++
C
For Loop
Is there a performance difference between a for loop and a for-each loop?
Java
Performance
For Loop
Excel VBA - exit for loop
Excel
Vba
For Loop
How to add leading zeros for for-loop in shell?
Bash
For Loop
Null check in an enhanced for loop
Java
Syntax
Loops
For Loop
How to loop through all but the last item of a list?
Python
List
For Loop
How can I make sense of the `else` clause of Python loops?
Python
Loops
For Loop
While Loop
Java 8 forEach with index
Java
For Loop
Foreach
Java 8
pythonic way to do something N times without an index variable?
Coding Style
For Loop
Python
Change values while iterating
Arrays
For Loop
Go
Is it safe to remove selected keys from map within a range loop?
Dictionary
For Loop
Go
How do I annotate types in a for-loop?
Python
For Loop
Pycharm
Type Hinting
Python Typing
Asynchronous Process inside a javascript for loop
Javascript
Asynchronous
For Loop
Synchronization
Never seen before C++ for loop
C#
C++
For Loop
Can a for loop increment/decrement by more than one?
Javascript
For Loop
Increment
How to stop a JavaScript for loop?
Javascript
For Loop
ggplot does not work if it is inside a for loop although it works outside of it
R
For Loop
Ggplot2
How to loop through key/value object in Javascript?
Javascript
Loops
For Loop
Iteration
Key Value
Loop through a comma-separated shell variable
Shell
Loops
Unix
For Loop
Cut
Python loop counter in a for loop
Loops
For Loop
Python
"for loop" with two variables?
Python
For Loop
What is the advantage of using forwarding references in range-based for loops?
C++
Performance
For Loop
C++11
Move Semantics
Last iteration of enhanced for loop in java
Java
For Loop
Foreach
Conditional Execution
Javascript efficiency: 'for' vs 'forEach'
Javascript
Loops
For Loop
Foreach
Performance of FOR vs FOREACH in PHP
Php
Arrays
Performance
Foreach
For Loop
How to frame two for loops in list comprehension python
Python
List
For Loop
List Comprehension
Is it a bad practice to use break in a for loop?
For Loop
Break
How can I break an outer loop with PHP?
Php
For Loop
Nested Loops
Break
Is there a way to avoid null check before the for-each loop iteration starts?
Java
For Loop
Foreach
Add characters to a string in Javascript
Javascript
String
For Loop
How to optimize for-comprehensions and loops in Scala?
Java
Performance
Scala
For Loop
While Loop
Type casting in for-in loop
For Loop
Swift
For in-Loop
Is there a way in Pandas to use previous row value in dataframe.apply when previous value is also calculated in the apply?
Python
Pandas
Dataframe
For Loop
Iteration
How do I fix "for loop initial declaration used outside C99 mode" GCC error?
C
Gcc
For Loop
Scala downwards or decreasing for loop?
Scala
Iterator
Loops
For Loop
For loop example in MySQL
Mysql
For Loop
Single Line Nested For Loops
Python
Loops
For Loop
Nested
Nested Loops
Breaking/exit nested for in vb.net
vb.net
For Loop
Nested Loops
Avoiding if statement inside a for loop?
C++
C++11
For Loop
Design Patterns
Iterating a JavaScript object's properties using jQuery
Javascript
Jquery
For Loop
Iteration
How to get a index value from foreach loop in jstl
Java
Jsp
For Loop
Foreach
Jstl
What do two left angle brackets mean?
C#
.Net
List
For Loop
Bitwise Operators
For loop inside its own curly braces
C++
For Loop
Scope
Removing item from vector, while in C++11 range 'for' loop?
C++
Vector
For Loop
C++11
Why does a 4 billion-iteration Java loop take only 2 ms?
Java
For Loop
Jvm
How do I check for last loop iteration in Django template?
Django
For Loop
Django Templates
R for loop skip to next iteration ifelse
R
For Loop
Decreasing for loops in Python impossible?
Python
Loops
For Loop
How to make a reverse ordered for loop?
For Loop
Rust
Loop over tuples in bash?
Bash
For Loop
How can I use break or continue within for loop in Twig template?
Php
Symfony
For Loop
Twig
Break
How to loop through a collection that supports IEnumerable?
C#
For Loop
Foreach
Ienumerable
Can a 'for' loop inside of a 'for' loop use the same counter variable name?
C
Loops
For Loop
Nested
How do I write a 'for' loop in Bash?
Bash
For Loop
Iterator
Java: Best way to iterate through a Collection (here ArrayList)
Java
Collections
For Loop
Performance difference for control structures 'for' and 'foreach' in C#
C#
Performance
For Loop
Foreach
Is there a need for range(len(a))?
Python
For Loop
Range
addEventListener using for loop and passing values
Javascript
For Loop
Addeventlistener
Skipping error in for-loop
R
For Loop
How do I put two increment statements in a C++ 'for' loop?
C++
For Loop
Comma Operator
Nested For Loops Using List Comprehension
Python
For Loop
List Comprehension
Why can I use a list index as an indexing variable in a for loop?
Python
For Loop
Indexing
Java: Initialize multiple variables in for loop init?
Java
For Loop
Python for-in loop preceded by a variable
Python
For Loop
For in-Loop
Looping through alphabets in Bash
Bash
Loops
For Loop
How to perform a for loop on each character in a string in Bash?
Bash
For Loop
Clean ways to write multiple 'for' loops
C++
For Loop
What does the colon (:) operator do?
Java
For Loop
Foreach
Operators
Colon
How to append rows in a pandas dataframe in a for loop?
Python
For Loop
Pandas
Dataframe
Better way to find index of item in ArrayList?
Java
For Loop
Arraylist
How to check the uniqueness inside a for-loop?
For Loop
Go
Append
Slice
For Loop on Lua
Loops
For Loop
Lua
Iterator vs for
Java
For Loop
Iterator
Seemingly endless loop terminates, unless System.out.println is used
Java
For Loop
Infinite Loop
ECMAScript 2015: const in for loops
Javascript
For Loop
Scope
Constants
Ecmascript 6
How to make for loops in Java increase by increments other than 1
Java
Loops
For Loop
Need iterator when using ranged-based for loops
C++
C++11
For Loop
Iterator
Postgres FOR LOOP
Postgresql
Stored Procedures
For Loop
Random
Plpgsql
JavaScript - Nuances of myArray.forEach vs for loop
Javascript
Arrays
For Loop
Internet Explorer-8
Iterator
Using Objects in For Of Loops
Javascript
For Loop
Ecmascript 6
Iterable
Is this a known pitfall of C++11 for loops?
C++
For Loop
C++11
Language Lawyer
Foreach
How can I use the FOR attribute of a LABEL tag without the ID attribute on the INPUT tag
Html
Input
Label
For Loop
Why does a for loop behave differently when migrating VB.NET code to C#?
C#
vb.net
Loops
For Loop
Allow for Range-Based For with enum classes?
C++
For Loop
C++11
Enums
Python iterating through object attributes
Python
Python 2.7
Object
For Loop
Composing Option with List in for-comprehension gives type mismatch depending on order
Scala
For Loop
Type Mismatch
For Comprehension
Scala Option
How to use variables in a bash for loop
Linux
Bash
For Loop
How to change index of a for loop?
Python
For Loop
C++ for each, pulling from vector elements
C++
For Loop
Vector
Each
How to concat string + i?
String
Matlab
Loops
For Loop
Octave
How to iterate through a list of objects in C++?
C++
For Loop
C++11
Stl
Iterator
Java 8: Parallel FOR loop
Java
For Loop
Concurrency
java.util.concurrent
Concurrent Programming
How to make a for loop variable const with the exception of the increment statement?
C++
Algorithm
For Loop
Variables
Constants
Thoughts on foreach with Enumerable.Range vs traditional for loop
C#
.Net
C# 3.0
For Loop
How to iterate a Vec<T> with the indexed position?
For Loop
Rust
Iterator
Is there a limit to the number of nested 'for' loops?
C#
For Loop
Compilation
Limit
What is the difference of pairs() vs. ipairs() in Lua?
For Loop
Lua
For vs. while in C programming?
C
Loops
For Loop
While Loop
Why can I use the same name for iterator and sequence in a Python for loop?
Python
For Loop
Variable Assignment
Python Internals
Breaking out of a for loop in Java
Java
Loops
For Loop
Break
What is the purpose of ";" at the end of for loop?
C
For Loop
How to loop through each row of dataFrame in pyspark
Apache Spark
Dataframe
For Loop
Pyspark
Apache Spark-Sql
Multiple initialization in C# 'for' loop
C#
Initialization
For Loop
How can I print out C++ map values?
C++
Dictionary
For Loop
Printing
Std Pair
How to create an integer-for-loop in Ruby?
Ruby
For Loop
How can I convert a JavaScript for-loop to CoffeeScript?
For Loop
Coffeescript
Is there an equivalent to the "for ... else" Python loop in C++?
Python
C++
Loops
For Loop
Break
How the new range-based for loop in C++17 helps Ranges TS?
C++
C++11
For Loop
C++17
Which ordering of nested loops for iterating over a 2D array is more efficient
C
Performance
For Loop
Cpu Cache
How does a for loop work, specifically for(;;)?
Java
Loops
Syntax
For Loop
Iteration
Iteration in LaTeX
Latex
For Loop
Iteration
Reverse iteration with an unsigned loop variable
C++
For Loop
Decrementing for loops
Python
For Loop
Decrement
print the unique values in every column in a pandas dataframe
Python
For Loop
Pandas
Using command line argument range in bash for loop prints brackets containing the arguments
Bash
Command Line
Loops
For Loop
Arguments
Skip over a value in the range function in python
Python
Loops
For Loop
Range
What's the best way to do a reverse 'for' loop with an unsigned index?
C
For Loop
Java: for(;;) vs. while(true)
Java
For Loop
While Loop
When should I use a Map instead of a For Loop?
Python
For Loop
C++11 Range-based for-loop efficiency "const auto &i" versus "auto i"
C++
For Loop
C++11
Auto
Parallel Loops in C++
C++
C++11
For Loop
Concurrency
C++14
Enhanced FOR loops in C++
Java
C++
For Loop
What is the following list of behind the scenes inside the range-based for loop?
C++
For Loop
Continue For loop
Vba
Loops
For Loop
Next
JavaScript loop variable scope
Javascript
Variables
For Loop
Scope
Why do R objects not print in a function or a "for" loop?
R
For Loop
Printing
R Faq
[tslint]Expected a 'for-of' loop instead of a 'for' loop with this simple iteration (prefer-for-of)
Javascript
Visual Studio
Typescript
For Loop
Tslint
R: Break for loop
R
For Loop
Break
Loop over array dimension in plpgsql
Arrays
Postgresql
Multidimensional Array
For Loop
Plpgsql
Is it bad practice to use the same variable name in multiple for-loops?
Javascript
For Loop
Jslint
Jshint
Performance of traditional for loop vs Iterator/foreach in Java
Java
Map
Iterator
Arraylist
For Loop
Skipping every other element after the first
Python
For Loop
Elements
Why did the range based 'for' loop specification change in C++17?
C++
For Loop
Language Lawyer
C++17
What is the full "for" loop syntax in C?
C
Syntax
For Loop
C: for loop int initial declaration
C
For Loop
Gcc
Syntax Error
While loop in batch
Windows
Batch File
For Loop
While Loop
Calling an asynchronous function within a for loop in JavaScript
Javascript
Asynchronous
For Loop
Closures
What is the meaning of list[:] in this code?
Python
List
For Loop
Iteration
Initialize all the elements of an array to the same number
C++
Arrays
For Loop
Why are arbitrary target expressions allowed in for-loops?
Python
For Loop
Language Lawyer
++i or i++ in for loops ??
C++
For Loop
Post Increment
Pre Increment
Python For loop get index
Python
Loops
For Loop
Indexing
Remove items from array with splice in for loop
Javascript
Jquery
Arrays
For Loop
'for' loop vs Qt's 'foreach' in C++
C++
Performance
Qt
Foreach
For Loop
Find files in a folder using Java
Java
File
Search
For Loop
Directory
Loop in Jade (currently known as "Pug") template engine
Javascript
For Loop
Pug
Express
Why an expression instead of a constant, in a C for-loop's conditional?
C
For Loop
Coding Style
Expression
Constantfolding
Why is a `for` loop so much faster to count True values?
Python
Python 3.x
Performance
For Loop
Sum
For-loop performance: storing array length in a variable
Javascript
Performance
For Loop
Skip first line(field) in loop using CSV file?
Python
Csv
For Loop
Does a C++11 range-based for loop condition get evaluated every cycle?
C++
Performance
For Loop
C++11
Foreach
for or while loop to do something n times
Python
Performance
Loops
For Loop
While Loop
How to write a `for` loop over bool values (false and true)
C++
For Loop
Boolean
Technical reasons behind formatting when incrementing by 1 in a 'for' loop?
Java
C#
C++
C
For Loop
In a "for" statement, should I use `!=` or `<`?
C++
Loops
For Loop
Conditional Statements
Get index of current element in C++ range-based for-loop
C++
For Loop
C++11
Iteration
Save multiple ggplots using a for loop
R
For Loop
Ggplot2
Where does GOTO :EOF return to?
Batch File
For Loop
Captured Closure (Loop Variable) in C# 5.0
C#
For Loop
Foreach
Closures
C# 5.0
Using Ruby, how can I iterate over a for loop n.times
Ruby
For Loop
Sum values from an array of key-value pairs in JavaScript
Javascript
Arrays
For Loop
Sum
Loop Over Array in Javascript
Javascript
Arrays
Loops
For Loop
Foreach
How to access the previous/next element in a for loop?
Python
For Loop
Looping through string values from a windows command line bat file
Windows
For Loop
Command Line
Looping over variables in ggplot
R
For Loop
Ggplot2
Tidyeval
Nse
Looping over a Date or POSIXct object results in a numeric iterator
R
Date
For Loop
Attributes
Posixct
Java for loop syntax: "for (T obj : objects)"
Java
Syntax
For Loop
Foreach
Why is forEach not working for children?
Javascript
For Loop
Foreach
Parent Child
Scope of python variable in for loop
Python
For Loop
Scope
Named breaks in for loops in Rust
For Loop
Break
Rust
Append existing excel sheet with new dataframe using python pandas
Python
Excel
For Loop
Pandas
Append
List append() in for loop
Python
For Loop
Append