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Our top guides and resources to help you learn new technologies the right way. Enjoy!

RxJS: Observables, Observers and Operators Introduction image

RxJS: Observables, Observers and Operators Introduction

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Todd Motto

Apr 22, 2020

RxJS is an incredible tool for reactive programming, and today we’re going to dive a little deeper into what Observables and Observers are - as wel...

Use .indexOf() to find a String in a String in JavaScript image

Use .indexOf() to find a String in a String in JavaScript

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Todd Motto

Apr 14, 2020

Learn how to find a string inside a string using indexOf in JavaScript, combined with the bitwise operator and looking at -1 results.

Exploring Array ForEach in JavaScript image

Exploring Array ForEach in JavaScript

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Todd Motto

Apr 9, 2020

Array ForEach is the entry-level loop tool that will iterate over your array and pass you each value (and its index). You could render the data to ...

Exploring Array Reduce in JavaScript image

Exploring Array Reduce in JavaScript

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Todd Motto

Apr 8, 2020

Array Reduce is the most misunderstood array method! Pay close attention to the little details and you’ll succeed with Reduce. The concept of Reduc...

Exploring Array Find in JavaScript image

Exploring Array Find in JavaScript

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Todd Motto

Apr 6, 2020

Array Find searches your array and returns you the first matching element, or undefined. Find’s return value is dynamic and could be of any JavaScr...

Exploring Array Every in JavaScript image

Exploring Array Every in JavaScript

Todd Motto image

Todd Motto

Apr 5, 2020

Array Every tells you whether every element in your array passes your test. If every element passes, Every returns true. If just one element in the...

Exploring Array Some in JavaScript image

Exploring Array Some in JavaScript

Todd Motto image

Todd Motto

Mar 26, 2020

Array Some tells you whether any element in your array passes your test. If one element passes then Array Some returns true. Some will return false...

Exploring Array Filter in JavaScript image

Exploring Array Filter in JavaScript

Todd Motto image

Todd Motto

Mar 25, 2020

Array Filter allows us to conditionally return certain elements from our array, into a new array. It’s commonly used to remove items from an array ...

Exploring Array Map in JavaScript image

Exploring Array Map in JavaScript

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Todd Motto

Mar 24, 2020

Array Map allows us to loop our array, access each value and return a new value for each iteration - which in turn creates a new array.

Removing Items from an Array in JavaScript image

Removing Items from an Array in JavaScript

Todd Motto image

Todd Motto

Mar 12, 2020

In this article, we’ll explore a few different ways to remove an item from an array in JavaScript. I will also show you mutable and immutable opera...

Angulars NgIf, Else, Then - Explained image

Angulars NgIf, Else, Then - Explained

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Todd Motto

Feb 20, 2020

Let’s look at the NgIf directive in this tutorial and uncover how to use it. We’ll also explore using NgIf with the “Else” statement and “Then”, to...

Getting the Value of Checked Radio Buttons image

Getting the Value of Checked Radio Buttons

Todd Motto image

Todd Motto

Feb 18, 2020

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