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Learn the basics of JavaScript Strings with code examples and small tutorials and descriptions on how each string function and method works.

Arrays in JavaScript are container-like values that can hold other values. Learn about array functions, how to join two arrays, the JavaScript last element in an array, and length of array in …

JavaScript variables are named values and can store any type of JavaScript value. Learn about JavaScript variable types, what a variable is, variable naming, how to declare a variable, and …

Learn the different JavaScript conditional statements with full examples of each and a brief explanation of how each conditional works.

JavaScript objects are variables that contain multiple data values. The values within a JS object are known as properties . Objects use keys to name values, much like how is done with …

Jun 12, 2025 · How to add user authentication to your JavaScript app by Steve Buchanan. Jun 09, 2025 • 15 min. Learn more. Measure What Matters: The MVPs of Learning Uncover the …

Learn about JavaScript numbers today. The JavaScript number function is values that can be used in mathematical operations. You don’t need any special syntax for numbers just write …