Matthew Tyson updated the article with newer syntax and code examples in May 2024. This article covers a sample of JavaScript statements you are most likely to see and use in your JavaScript programs.

While many data sources encountered by the JavaScript programmer are synchronous (such as in-memory lists and other data structures), many others are not. For instance, any data source which requires ...

Loops in javascript allow us to automate processes that would be tedious and exhausting otherwise. For example: Without loops, printing 100 different numbers would take 100 lines of code. With loops, ...

Repetition in a program means that lines of code will be run multiple times. Iteration is a term similar ... Here are two examples, both using fixed loops to repeat a specific sequence of code ...

Iteration is the process of repeating steps. For example, a very simple algorithm ... often referred to as ‘looping’, because when a program iterates it ‘loops’ to an earlier step.