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.
Nested For Loops in Javascript
Jan 6 2024
Learn the many situations where we will need to use nested loops in Javascript.
Read moreHow to break out of foreach loops in Javascript
Jan 6 2024
Learn how to exit a foreach loop in Javascript!
Read moreHow to exit a function in Javascript
Dec 29 2023
To exit a function in Javascript, you can use the return, break, or throw statements.
Read moreHow to subtract dates in Javascript
Dec 29 2023
Let us learn about dates and how to subtract them in Javascript!
Read moreHow to convert Celsius to Fahrenheit
Dec 20 2023
Learn to convert C to F using Python and Javascript!
Read moreHow to convert Fahrenheit to Celsius
Dec 20 2023
Let us write simple programs to convert Fahrenheit to Celsius!
Read moreHow to convert days to years
Dec 3 2023
Here is some math + coding for you to convert days to years!
Read moreJavascript toISOString()
Dec 3 2023
Learn how to convert Javascript Date objects into strings in ISO format!
Read moreBirthday Paradox Calculator
Dec 2 2023
Learn about the Birthday Paradox with a simple calculator to understand its implications!
Read moreHow to convert minutes to days
Nov 30 2023
Here is some math + coding for you to convert minutes to days!
Read moreHow to convert seconds to years
Nov 23 2023
Here is some math + coding for you to convert seconds to years!
Read moreHow to scroll automatically to the bottom of a webpage
Nov 13 2023
Learn to use Javascript to scroll down on a webpage!
Read moreHow to use Javascript’s Slick.js to create a Carousel
Nov 13 2023
Learn to make an interactive, compelling, carousel in your webpage using Javascript’s slick library!
Read moreThe Increment (++) Arithmetic Operator in Javascript
Nov 9 2023
Learn the increment (++) operator in Javascript and how it works!
Read moreBuilding a simple clicker in Javascript
Nov 9 2023
Learn how to make a simple clicker (game) in Javascript!
Read moreGetting URL parameters with Javascript
Nov 8 2023
Learn how to extract URL parameters from your URL using Javascript!
Read moreHow to download a file from a URL using Javascript
Nov 8 2023
Learn to programmatically download a file from your Javascript program!
Read moreHow to add commas to a Javascript number
Oct 25 2023
Learn how to add commas to a Javascript number to make it more readable!
Read moreHow to check if a Javascript string is a number
Oct 25 2023
How do you test if a Javascript string is a number? Learn simple programs to conduct this test!
Read moreHow to convert days to seconds
Oct 24 2023
Here is some math + coding for you to convert days to seconds!
Read moreHow to round down a number in Javascript
Oct 24 2023
Learn different ways to round down a number in Javascript!
Read moreHow to find all combinations of array values in Javascript
Oct 23 2023
Learn how to generate all combinations of array values in Javascript!
Read moreDoes Javascript support list comprehensions?
Oct 23 2023
Javascript does not directly support list comprehensions but it provides map, filter, reduce, and other similar concepts from functional programming.
Read moreThe question mark (?) operator in Javascript
Oct 21 2023
Learn the many uses for the question mark (“?”) operator in Javascript.
Read moreHow to add days to dates in Javascript
Oct 17 2023
Learn easy tricks to add some number of days to the current date in Javascript.
Read moreCommenting out in Javascript
Oct 17 2023
Learn the rules of commenting in Javascript, especially how to comment out multiple lines!
Read moreHow to swap variables in Javascript
Oct 12 2023
Learn five (yes five!) different ways to swap two variables in Javascript.
Read moreJavascript toFixed()
Oct 12 2023
Learn to convert numbers to strings in Javascript and how to enforce a length in doing so!
Read moreJavascript’s double question mark (??)
Oct 7 2023
Learn how and when to use the Javascript double question mark (??) operator!
Read moreJavascript trimEnd()
Oct 7 2023
trimEnd() is a handy Javascript method that, as the name suggests, trims your string of any whitespace at the end of it.
Read moreHow 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!
Read moreWhat 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!
Read moreHow to get user input in Javascript
Jul 22 2022
Learn two approaches to get user input in Javascript: the prompt() method and a textbox.
Read moreHow 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!
Read moreHow 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?
Read moreHow 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!
Read moreFind your current time zone in Javascript
Jul 19 2022
Here’s a very handy program to determine your current time zone programmatically in Javascript.
Read moreGetting 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!
Read moreHiding 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.
Read moreRemoving Elements from a DOM in Javascript
Jul 6 2022
Learn how to programmatically remove elements from a DOM and modify a webpage!
Read moreJavascript instanceof
Jul 6 2022
Javascript’s instanceof operator is a very convenient way to understand objects and their types. Learn how to use it!
Read moreHow to scramble a word in Javascript
Jul 5 2022
Want to randomly permute the order of characters in a Javascript string? Learn how!
Read moreCan a Javascript function return multiple values?
Jul 5 2022
Dive deeper into Javascript functions and see whether a function can return multiple values.
Read moreJavascript’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.
Read moreHow to loop through two arrays in Javascript
Jul 4 2022
Learn how to do the Javascript equivalent of the zip function from Python!
Read moreThe valueOf method in Javascript
Jun 6 2022
The valueOf method in Javascript returns the primitive value of an object without changing its original value.
Read moreJavaScript’s Math.floor() Method
Jun 6 2022
Learn Javascript’s Math.floor() method using simple examples!
Read moreJavascript'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!
Read moreJavascript’s Math.max() function
Jun 3 2022
Learn about the very useful Math.max() function in Javascript!
Read moreHow 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!
Read moreComputing powers in Javascript
May 31 2022