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JavaScript blogs

Comprehensive guides to mastering JavaScript and beyond.

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Obscure email addresses with asterisks in JavaScript

Want to obscure an email address with JavaScript? Here’s how. Why might you want to do it? A bit of privacy!

Todd Motto

Todd Motto

Mar 8, 2021

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Checking if a JavaScript Object has any keys

JavaScript has come a long way in recent years, introducing some great utility functions such as Object.keys, Object.values and many more. In this ...

Todd Motto

Todd Motto

Feb 6, 2021

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Ways to check if a String starts with specific characters

Like all things JavaScript, there are many ways to accomplish the same task. Here we’ll dive into the various ways to check if a JavaScript string ...

Todd Motto

Todd Motto

Feb 3, 2021

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Object​.is() vs === in JavaScript

In this post you’ll learn how to use the new ES6 method Object.is() in JavaScript.

Todd Motto

Todd Motto

Jun 6, 2020

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Ultimate Guide to PWAs with Workbox

This post is a complete guide to building a Progressive Web App (PWA) from the beginning using Google’s Workbox. By the end of this guide, you’ll b...

Andres Gesteira

Andres Gesteira

Jun 5, 2020

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Removing Object Properties with Destructuring

In this post you’ll learn how to remove properties from an object in JavaScript using destructuring and the ...rest syntax.

Todd Motto

Todd Motto

Jun 3, 2020

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Private Properties and Methods in JavaScript Classes

In this post you’ll learn all about private properties and methods in JavaScript using the new # syntax.

Todd Motto

Todd Motto

May 31, 2020

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Find a Substring inside a String in JavaScript

In this post you’ll learn how to use JavaScript to find a substring inside a string.

Todd Motto

Todd Motto

May 29, 2020

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Ways to Return an Object from an Arrow Function

In this post you’ll learn a few different ways to return an object from an arrow function. Sometimes you’ll just want to return an object and not u...

Todd Motto

Todd Motto

May 28, 2020

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Using Fetch to Post JSON data

In this post you’ll learn how to use the fetch API to POST JSON data to a backend service.

Todd Motto

Todd Motto

May 20, 2020

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Checking a Radio Button in JavaScript

In this post you’ll learn a few ways to check the selected radio input (<input type="radio">) and look at different ways of achieving the sam...

Todd Motto

Todd Motto

May 19, 2020