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All If Statement Solutions on Gang of Coders
Total of 227 If Statement Solutions
break out of if and foreach
Php
If Statement
Foreach
Break
Why does a Java Compiler not produce an unreachable statement error for an unreachable then statement?
Java
If Statement
Unreachable Code
Unreachable Statement
MYSQL Sum Query with IF Condition
Mysql
If Statement
Sum
python list comprehension with multiple 'if's
Python
If Statement
List Comprehension
how to check for null with a ng-if values in a view with angularjs?
Javascript
Angularjs
If Statement
Isnull
Java if vs. try/catch overhead
Java
Exception Handling
If Statement
Try Catch
Overhead
Will an IF statement stop evaluating if it fails the first condition?
C#
If Statement
Conditional Statements
Is there any reason for using if(1 || !Foo())?
C++
C
If Statement
Syntax
Logical Operators
endforeach in loops?
Php
Loops
Foreach
If Statement
Expression must be a modifiable lvalue
C++
If Statement
If statement in select (ORACLE)
Sql
Oracle
Select
If Statement
Oracle10g
if...else within JSP or JSTL
Jsp
If Statement
Jstl
Is there a list of 'if' switches anywhere?
Bash
If Statement
Switch Statement
Shell Exec
Is it possible to simplify an if-statement that checks for a combination?
C#
If Statement
Unity3d
How to negate code in "if" statement block in JavaScript -JQuery like 'if not then..'
Javascript
Jquery
If Statement
Conditional Statements
if->return vs. if->else efficiency
Performance
Return
If Statement
What's the proper way to format "if" statements in Java with multiline "ands" or "ors"?
Java
If Statement
Format
Are these lines of JavaScript code equivalent?
Javascript
If Statement
Compact way to write if(..) statement with many equalities
C++
If Statement
Redundant comparison & "if" before assignment
C#
.Net
If Statement
How to avoid a lot of if else conditions
Java
If Statement
Refactoring
Is there a difference in removing the curly braces from If statements in java
Java
If Statement
Curly Braces
How can "a <= b && b <= a && a != b" be true?
Java
Loops
If Statement
Autoboxing
Is there a way to shorten this while condition?
C++
Algorithm
If Statement
While Loop
Simplify
Which SQL statement is faster? (HAVING vs. WHERE...)
Sql
Performance
Grouping
If Statement
Do else if statements exist in C#?
C#
.Net
If Statement
jQuery - how to check if an element exists?
Javascript
Jquery
If Statement
if variable contains
Javascript
Variables
If Statement
One line if statement in PHP
Php
If Statement
What is the difference between `try` and `&.` (safe navigation operator) in Ruby
Ruby on-Rails
Ruby
If Statement
Nomethoderror
Grape Api
JavaScript conditional switch statement
Javascript
If Statement
Is there a need to do a if(log.isDebugEnabled()) { ... } check?
Java
If Statement
Log4j
Logging
SQL Server INLINE IF ELSE
Sql Server
If Statement
Best way to format multiple 'or' conditions in an if statement
Java
Syntax
If Statement
Python Conditional Variable Setting
Python
Variables
If Statement
Conditional Statements
Check for a value equals to in Ember Handlebar If block helper
If Statement
ember.js
handlebars.js
"elseif" syntax in JavaScript
Javascript
If Statement
Syntax
Usage of ‘if’ versus ‘unless’ for Perl conditionals
Perl
If Statement
Readability
Windows Batch Variables Won't Set
Windows
Batch File
If Statement
Cmd
Delayedvariableexpansion
A somewhat painful triple-nested ternary operator
Javascript
If Statement
Ternary Operator
If strings starts with in PowerShell
Powershell
If Statement
Startswith
Putting a simple if-then-else statement on one line
Python
If Statement
Syntax
Ternary Operator
JavaScript single line 'if' statement - best syntax, this alternative?
Javascript
If Statement
How to avoid "if" chains?
C++
C
If Statement
Control Flow
An "and" operator for an "if" statement in Bash
Bash
If Statement
Too many 'if' statements?
If Statement
Math
Formula
Short form for Java if statement
Java
If Statement
Ternary Operator
Meaning of "[: too many arguments" error from if [] (square brackets)
Bash
If Statement
Arguments
How to use conditional statement within child attribute of a Flutter Widget (Center Widget)
Flutter
If Statement
Dart
Conditional Statements
Difference between if (a - b < 0) and if (a < b)
Java
If Statement
Arraylist
Java String - See if a string contains only numbers and not letters
Java
String
If Statement
Pythonic way to avoid "if x: return x" statements
Python
If Statement
Test for non-zero length string in Bash: [ -n "$var" ] or [ "$var" ]
Bash
Shell
If Statement
Syntax
Scripting
Why does this if-statement combining assignment and an equality check return true?
C++
If Statement
Can dplyr package be used for conditional mutating?
R
If Statement
Case When
Dplyr
Negate if condition in bash script
Linux
Bash
If Statement
Negate
What is a good practice to check if an environmental variable exists or not?
Python
Python 2.7
Python 3.x
If Statement
Environment Variables
Can I use the range operator with if statement in Swift?
If Statement
Swift
Range
How to prevent ifelse() from turning Date objects into numeric objects
R
Date
Datetime
If Statement
inline conditionals in angular.js
Angularjs
If Statement
Ternary Operator
Python if not == vs if !=
Python
If Statement
Equality
Difference between single and double square brackets in Bash
Bash
If Statement
How to implement if-else statement in XSLT?
Xml
Xslt
If Statement
What is the effect of ordering if...else if statements by probability?
C++
Performance
If Statement
Optimization
Branch Prediction
Bash if statement with multiple conditions throws an error
Bash
If Statement
Flags
Putting an if-elif-else statement on one line?
Python
If Statement
Syntax
How can I use "*ngIf else"?
Angular
If Statement
Angular Template
Can I use if (pointer) instead of if (pointer != NULL)?
C++
Pointers
If Statement
Null
Null Pointer
Are double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
Bash
If Statement
Syntax
Checking for NULL pointer in C/C++
C++
C
If Statement
Null
Coding Style
Test if a string contains any of the strings from an array
Java
String
If Statement
Advantage of switch over if-else statement
C++
If Statement
Optimization
Switch Statement
Styling multi-line conditions in 'if' statements?
Python
Coding Style
If Statement
How to test multiple variables for equality against a single value?
Python
If Statement
Comparison
Match
Boolean Logic
One line if-condition-assignment
Python
If Statement
Assignment in an if statement
C#
Casting
If Statement
How do I compare two string variables in an 'if' statement in Bash?
Bash
If Statement
Scripting
if else statement in AngularJS templates
If Statement
Angularjs
Using multiple let-as within a if-statement in Swift
If Statement
Swift
Optional
Check if a value is within a range of numbers
Javascript
If Statement
Is it a bad practice to use an if-statement without curly braces?
If Statement
Coding Style
Curly Braces
How to use if - else structure in a batch file?
Batch File
If Statement
How to shorten my conditional statements
Javascript
If Statement
How to do if-else in Thymeleaf?
Java
Jsp
If Statement
Jstl
Thymeleaf
&& (AND) and || (OR) in IF statements
Java
If Statement
Better to 'try' something and catch the exception or test if it's possible first to avoid an exception?
Python
Exception Handling
If Statement
Try Catch
Pep
Count with IF condition in MySQL query
Mysql
Join
If Statement
Count
Compare two columns using pandas
Python
Pandas
If Statement
Dataframe
If condition A is matched, condition B needs to be matched in order to do action C
If Statement
Language Agnostic
Conditional Statements
Boolean Logic
How to do one-liner if else statement?
If Statement
Go
Conditional Operator
Ternary
Does inverting the "if" improve performance?
C#
If Statement
Resharper
What is the purpose of an 'if (0)' block in if-else block?
C
If Statement
What is a None value?
Python
Variables
If Statement
IF statement: how to leave cell blank if condition is false ("" does not work)
Excel
If Statement
Excel 2010
Worksheet Function
Why can't R's ifelse statements return vectors?
R
If Statement
Vectorization
R Faq
What is the relative performance difference of if/else versus switch statement in Java?
Java
Performance
Switch Statement
If Statement
Python syntax for "if a or b or c but not all of them"
Python
If Statement
Why does python use 'else' after for and while loops?
Python
If Statement
For Loop
For Else
Most elegant way to write a one-shot 'if'
C++
If Statement
C++17
C++, variable declaration in 'if' expression
C++
Compilation
If Statement
Variable Declaration
Test whether string is a valid integer
String
Bash
If Statement
Integer
jQuery: Test if checkbox is NOT checked
Jquery
If Statement
Regex matching in a Bash if statement
Regex
Bash
If Statement
List comprehension with if statement
Python
If Statement
List Comprehension
MySQL IF NOT NULL, then display 1, else display 0
Mysql
If Statement
if else in a list comprehension
Python
List
List Comprehension
If Statement
if checkbox is checked, do this
Jquery
Checkbox
If Statement
Checked
Unchecked
Is using if (0) to skip a case in a switch supposed to work?
C++
C
If Statement
Switch Statement
Language Lawyer
#ifdef vs #if - which is better/safer as a method for enabling/disabling compilation of particular sections of code?
C++
C
If Statement
Coding Style
C Preprocessor
How to do a logical OR operation for integer comparison in shell scripting?
Bash
Unix
If Statement
Sh
Guards vs. if-then-else vs. cases in Haskell
Haskell
If Statement
Case
How to improve logic to check whether 4 boolean values match some cases
C++
If Statement
Is "IF" expensive?
If Statement
Language Agnostic
Branch Prediction
Type-juggling and (strict) greater/lesser-than comparisons in PHP
Php
If Statement
Comparison
Logic
Ieee 754
How to make Visual Studio not put { on a new line?
C#
.Net
Visual Studio
Formatting
If Statement
How to check if a string starts with one of several prefixes?
Java
String
If Statement
Most efficient way of making an if-elif-elif-else statement when the else is done the most?
Python
Performance
If Statement
If vs. Switch Speed
C#
Performance
Switch Statement
If Statement
Syntax for if/else condition in SCSS mixin
Conditional
Mixins
Sass
If Statement
IF... OR IF... in a windows batch file
Windows
Batch File
If Statement
Cmd
Conditional
Simple 'if' or logic statement in Python
Python
If Statement
Logic
Angularjs if-then-else construction in expression
Javascript
Angularjs
If Statement
Angularjs Ng-Repeat
Ternary Operator
How to avoid if / else if chain when classifying a heading into 8 directions?
C++
If Statement
How can a Java variable be different from itself?
Java
If Statement
Can I have an IF block in DOS batch file?
If Statement
Batch File
Why does this if statement, with an assignment and equality check, evaluate to false?
Java
If Statement
Logic
If statement in aspx page
asp.net
If Statement
How to write inline if statement for print?
Python
If Statement
Inline
Using switch statement with a range of value in each case?
Java
If Statement
Switch Statement
How to use if-else condition on gitlabci
If Statement
Gitlab Ci
Performance difference between IIf() and If
vb.net
If Statement
Iif Function
jQuery if checkbox is checked
Jquery
Checkbox
If Statement
MySQL IF ELSEIF in select query
Mysql
If Statement
How is Swift IF LET evaluated?
If Statement
Swift
PostgreSQL IF statement
Sql
Postgresql
If Statement
Plpgsql
How to check the exit status using an 'if' statement
Bash
Shell
If Statement
Error Handling
Exit Code
if statements matching multiple values
C#
If Statement
If conditions in a Makefile, inside a target
If Statement
Makefile
Target
Is there a difference between "!=" and "is not" in C#?
C#
If Statement
Syntax
How do write IF ELSE statement in a MySQL query
Mysql
If Statement
Difference between multiple if's and elif's?
Python
If Statement
Using the && operator in an if statement
Bash
If Statement
Syntax
Operators
Best way to format if statement with multiple conditions
If Statement
Formatting
Language Agnostic
Check if a div does NOT exist with javascript
Javascript
Html
If Statement
Groups of compound conditions in Bash test
Bash
If Statement
R - How to test for character(0) in IF statement
R
If Statement
if statement - short circuit evaluation vs readability
C++
If Statement
Short Circuiting
Side Effects
When are square brackets required in a Bash if statement?
Bash
If Statement
Square Bracket
Why is the 'if' statement considered evil?
Programming Languages
If Statement
How can I increment a variable without exceeding a maximum value?
Java
If Statement
Switch Statement
Saturation Arithmetic
Short IF - ELSE statement
Java
If Statement
Which "if" construct is faster - statement or ternary operator?
Java
Performance
If Statement
Shorthand
Premature Optimization
Getting "command not found" error while comparing two strings in Bash
String
Bash
If Statement
Syntax
Compare
Using AND/OR in if else PHP statement
Php
If Statement
Does PHP have short-circuit evaluation?
Php
If Statement
Short Circuiting
Pythonic way to check if something exists?
Python
If Statement
If without else ternary operator
Java
If Statement
Ternary Operator
Dart null / false / empty checking: How to write this shorter?
If Statement
Dart
Conditional
Python: check if an object is a sequence
Python
If Statement
Sequence
Sequences
Case insensitive string comparison
Php
If Statement
Case Insensitive
MySQL: update a field only if condition is met
Mysql
If Statement
Sql Update
Does Go have "if x in" construct similar to Python?
If Statement
Go
if, elif, else statement issues in Bash
Bash
If Statement
Defining a variable in the condition part of an if-statement?
C++
Variables
If Statement
Standards
Difference between parentheses and brackets in Bash conditionals
Bash
If Statement
How to make "if not true condition"?
Bash
If Statement
Syntax
Boolean Expression
Performance of if-else, switch or map based conditioning
Javascript
Switch Statement
If Statement
C# go to next item in list based on if statement in foreach
C#
asp.net
If Statement
How to check if a defined constant exists in PHP?
Php
If Statement
Constants
Fuelphp
How do I perform an IF...THEN in an SQL SELECT?
Sql
Sql Server
Tsql
If Statement
Case
Is "else if" faster than "switch() case"?
C#
Performance
If Statement
Switch Statement
Why should there be spaces around '[' and ']' in Bash?
Bash
If Statement
Syntax
Which is Faster and better, Switch Case or if else if?
Php
Performance
If Statement
Switch Statement
How can I check if an app running on Android?
Java
Android
Browser
If Statement
Semicolon at end of 'if' statement
Java
If Statement
Does C# perform short circuit evaluation of if statements with await?
C#
If Statement
Async Await
Short Circuiting
Does Python have a cleaner way to express "if x contains a|b|c|d..."?
Python
If Statement
Python 3.x
Substring
One liner for If string is not null or empty else
C#
If Statement
Isnullorempty
Difference between 'if -e' and 'if -f'
Bash
If Statement
Using multiple conditions (AND) in SASS IF statement
If Statement
Sass
SQL Server IF EXISTS THEN 1 ELSE 2
Sql
Sql Server
If Statement
Stored Procedures
Sql Server-2012
Why is an empty else-if statement bad style, and how should I rewrite it?
Java
If Statement
Why is "else" rarely used after "if x then return"?
Java
Coding Style
If Statement
Function Exit
Else clause on Python while statement
Python
Syntax
While Loop
If Statement
Conditional statement in a one line lambda function in python?
Python
If Statement
Lambda
Ternary Operator
Conditional Operator
Jinja2 template not rendering if-elif-else statement properly
Python
Css
If Statement
Jinja2
SQL Server: IF EXISTS ; ELSE
Sql
Sql Server
If Statement
Exists
if else condition in ggplot to add an extra layer
R
If Statement
Ggplot2
Do I need to put constexpr after else-if?
C++
If Statement
C++17
If Constexpr
What's the reasoning behind putting constants in 'if' statements first?
C++
Coding Style
Constants
If Statement
If not true (!true)
If Statement
Go
Go Templates
Bash - what's the use of "fi ;;"?
Bash
If Statement
How to add if condition in a TensorFlow graph?
Python
If Statement
Tensorflow
Difference between "if constexpr()" Vs "if()"
C++
If Statement
Constexpr
C++17
What's the scope of a variable initialized in an if statement?
Python
Variables
If Statement
Scope
Local Variables
Use if else to declare a `let` or `const` to use after the if/else?
Javascript
If Statement
Reactjs
Constants
Let
How to write an inline IF statement in JavaScript?
Javascript
If Statement
Ternary Operator
Conditional Operator
Does IF perform better than IF-ELSE?
C#
Performance
If Statement
Nested ifelse statement
R
If Statement
Nested
Sas
How do I write a complex multi-line if condition in Ruby?
Ruby
If Statement
Conditional
Conditional Statements
Case vs If Else If: Which is more efficient?
Performance
Switch Statement
If Statement
Pythonic way to combine for-loop and if-statement
Python
Loops
If Statement
For Loop
javascript variable scope in the IF statement
Javascript
Variables
If Statement
Scope
Does ifelse really calculate both of its vectors every time? Is it slow?
R
Performance
If Statement
Vectorization
How to check if a string contains an element from a list in Python
Python
String
If Statement
What is better: multiple "if" statements or one "if" with multiple conditions?
Java
Optimization
If Statement
Multiple Conditions
How is String in switch statement more efficient than corresponding if-else statement?
Java
String
If Statement
Switch Statement
jinja2 - how to put a block in an if statement?
Python
Python 2.7
If Statement
Flask
Jinja2
Why the switch statement and not if-else?
If Statement
Language Agnostic
Switch Statement
Django {% with %} tags within {% if %} {% else %} tags?
Django
Templates
With Statement
If Statement
Unexpected 'else' in "else" error
R
If Statement
Which Logic Operator Takes Precedence
Javascript
If Statement
Logic
Operator Precedence
Variable declarations following if statements
C#
If Statement
Use string.Contains() with switch()
C#
String
If Statement
Switch Statement
Contains
Switch case statement in coffee script
If Statement
Coffeescript
Switch Statement
What is the advantage of commas in a conditional statement?
C++
If Statement
Comma
How do I test if a variable does not equal either of two values?
Javascript
If Statement
Conditional Statements
Equals
Boolean Logic
if (cin >> x) - Why can you use that condition?
C++
Variables
If Statement
Cin
mysql SELECT IF statement with OR
Mysql
Sql
Select
If Statement
Right way to convert data.frame to a numeric matrix, when df also contains strings?
R
If Statement
Matrix
Numeric
One line if/else condition in linux shell scripting
Linux
Shell
If Statement
How can I check if 'grep' doesn't have any output?
Bash
If Statement
Null
Grep
PHP - If/else, for, foreach, while - without curly braces?
Php
If Statement
Foreach
Curly Braces
Compiler error when declaring a variable inside if condition and no curly braces
Java
If Statement
Block
Declaration
Defining JavaScript variables inside if-statements
Javascript
Variables
If Statement
What does a semicolon do?
Python
Function
If Statement
Syntax
Break
Simpler way to check if variable is not equal to multiple string values?
Php
If Statement
Conditional Statements