Loops

For Loops in Batch

Learn the many forms of the batch for command: iterating lists, ranges, files, directories, and command output with %%variables.

LINQ vs Loops

Compare LINQ's declarative query syntax against traditional for/foreach loops in terms of readability, composability, and raw performance.

Logic Controllers: If, Loop, and Transaction

Master JMeter's If Controller, Loop Controller, and Transaction Controller to build test plans with conditional branches, repeated actions, and grouped metrics…

Loops in PowerShell

Master PowerShell's iteration constructs — foreach, for, while, do-while, and pipeline-based ForEach-Object — along with break and continue for controlling rep…

DAX Variables and Iterators

VAR and RETURN make complex DAX measures more readable and performant by caching intermediate results, especially when combined with iterator functions.

Loops: Apply to Each

How Apply to Each and Do Until iterate over data, including concurrency control and performance trade-offs.

Loops in Fortran

Fortran's DO, DO WHILE, and indefinite loop constructs, plus EXIT and CYCLE control flow.

OpenMP in Fortran

Learn how to parallelize loops and accumulate results safely across shared-memory threads using Fortran's !$omp directives.

Loops in Pascal

Master Pascal's three loop constructs — for, while, and repeat-until — and know when to use each.

Conditionals and Loops in Apex

Learn how Apex controls program flow with if/else branching, switch statements, and for/while loops, including the governor limits that shape how you write the…

Branching and Loops in sed

Learn how sed uses labels, unconditional branches, and conditional branches to build loops and control flow inside its scripting language.

Loops in AWK

Master AWK's iteration constructs — while, do-while, for, and the array-oriented for-in loop — along with break, continue, and next for controlling flow throug…

Loops in Arduino

Understand the built-in loop() function and the for, while, and do-while loops that repeat actions inside an Arduino sketch.

Conditionals and Loops in Solidity

Learn how Solidity handles branching with if/else and repetition with for, while, and do-while loops, and why unbounded loops are dangerous in a gas-metered en…

Loops in VBA

Master repetition in VBA with counter-driven For...Next, collection-driven For Each, and condition-driven Do loops.

Loops in VB.NET

Master repetitive control flow in VB.NET using For...Next, While, Do loops, and For Each, including loop control statements like Exit and Continue.

Loops in Tcl

Master Tcl's while, for, and foreach loops, along with break and continue for controlling repeated execution.

mapcar and Functional Iteration

How mapcar and its relatives let you transform lists by applying a function across them, without hand-writing explicit loops.

Loops in Objective-C

Understand Objective-C's for, while, do-while, and fast enumeration (for-in) loops, and how break and continue control iteration.

Loops in MATLAB

Master for and while loops in MATLAB, including break/continue, nested loops, preallocation, and iterating cell arrays and structs.

Loops in R

How R's for, while, and repeat loops work, including break/next control flow and the classic vector-preallocation performance fix.

Loops in Julia

Master for and while loops, iteration over collections, break/continue, and performance-minded loop patterns in Julia.

Loops in D

Master D's looping constructs -- while, do-while, for, foreach, and foreach_reverse -- including range iteration and loop control.

Loops in Dart

Master Dart's for, for-in, while, and do-while loops, along with break, continue, and labeled loops for fine-grained control over iteration.

Bash Scripting Cheat Sheet

Practical Bash scripting reference covering variables, conditionals, loops, string/array handling, and common builtins.

Visual Basic 6 Cheat Sheet

Classic VB6 syntax including variable declarations, conditionals, loops, and procedures for legacy Windows desktop applications.

Forth Cheat Sheet

Core Forth stack-manipulation words, custom word definitions, conditionals, and loops for this minimalist stack-based language.