Javascript Resources

An introduction to Javascript programming, client-side and server-side scripts, coding projects, resources for parents and more. Javascript is the foundation of modern websites and applications.


How to not allow special characters in a textbox

Sep 5 2022

Learn a simple approach to validate your user’s input in a textbox so as to not allow special characters!
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What is NaN in Javascript?

Jul 22 2022

NaNs refer to objects in Javascript that are not valid numbers. Learn how they occur and how to check for them!
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How to get user input in Javascript

Jul 22 2022

Learn two approaches to get user input in Javascript: the prompt() method and a textbox.
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How to check if a letter is uppercase in Javascript

Jul 20 2022

Learn a handy way to check if a letter is uppercase in Javascript!
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How to Reverse a String in Javascript

Jul 20 2022

Learn four different ways to reverse a string in Javascript. Which one will be your favorite?
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How to get yesterday’s date (or tomorrow’s date) in Javascript

Jul 19 2022

Need a handy way to get yesterday’s date (or tomorrow’s date) in your Javascript code? Learn how!
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Find your current time zone in Javascript

Jul 19 2022

Here’s a very handy program to determine your current time zone programmatically in Javascript.
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Getting the value of a clicked button in Javascript

Jul 17 2022

Want to setup buttons on your page and recognize when they are clicked? Learn how to do so!
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Hiding Dropdown Values in Javascript

Jul 17 2022

Learn how to hide dropdown values in Javascript based on user selections elsewhere. This is very useful in creating interactive menus.
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Removing Elements from a DOM in Javascript

Jul 6 2022

Learn how to programmatically remove elements from a DOM and modify a webpage!
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Javascript instanceof

Jul 6 2022

Javascript’s instanceof operator is a very convenient way to understand objects and their types. Learn how to use it!
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How to scramble a word in Javascript

Jul 5 2022

Want to randomly permute the order of characters in a Javascript string? Learn how!
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Can a Javascript function return multiple values?

Jul 5 2022

Dive deeper into Javascript functions and see whether a function can return multiple values.
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Javascript’s Array reduce() method

Jul 4 2022

Learn about the reduce() method in Javascript that computes functions over an entire array and returns accumulated results.
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How to loop through two arrays in Javascript

Jul 4 2022

Learn how to do the Javascript equivalent of the zip function from Python!
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The valueOf method in Javascript

Jun 6 2022

The valueOf method in Javascript returns the primitive value of an object without changing its original value.
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JavaScript’s Math.floor() Method

Jun 6 2022

Learn Javascript’s Math.floor() method using simple examples!
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Javascript's Array shift() method

Jun 3 2022

Javascript’s shift() method offers a convenient way to remove the first element of an array. Learn how to use it!
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Javascript’s Math.max() function

Jun 3 2022

Learn about the very useful Math.max() function in Javascript!
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How to check if a number is between two numbers in JavaScript

May 31 2022

Writing a Javascript program and trying to check if a number is in between two values? Learn how to do so!
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Computing powers in Javascript

May 31 2022

Looking to compute powers of numbers in your interactive webpage? Learn how to do so!
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