Sometimes, we may want to convert a JavaScript date object to a string in YYYYMMDD format.

In this article, we’ll look at how to format a JavaScript date into a string in YYYYMMDD format.

Using Native JavaScript Date and String Methods

One way to get a JavaScript date into a string in YYYYMMDD format is to use…

Sometimes, we may want to programmatically set the value of a select element with JavaScript.

In this article, we’ll look at how to programmatically set the value of a select element with JavaScript.

Setting the value Property

One way to set the value of a select element is to set the value of the…

Sometimes we need to detect the arrow key presses in our JavaScript web apps.

In this article, we’ll look at how to detect arrow key presses in JavaScript.

Use the keyCode Property

We can listen to the keydown event and get the keyCode property from the event object.

For instance, we can write:

document.onkeydown…

Removing a last item from the JavaScript array is something that we’ve to do sometimes with our code.

In this article, we’ll look at how to remove the last item from a JavaScript array.

Array.prototype.splice

We can use the JavaScript array’s splice method to remove the last item from the array.

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Sometimes, we want to conditionally add a member to a JavaScript object.

In this article, we’ll look at how to conditionally add a member to a JavaScript object.

Spread Operator

We can use the spread operator to spread an object into another object conditionally.

For instance, we can write:

const condition =…

Sometimes, we may want to get a subset of JavaScript properties from an object.

In this article, we’ll look at ways to get a subset of JavaScript object’s properties to a place where we can use them.

Object Destructuring

The shortest and easiest way to get a subset of a JavaScript object’s…

Sometimes we use a set to create a data structure that doesn’t have duplicate elements.

But we’ve to convert them to an array so we can work with them more easily.

In this article, we’ll look at ways to convert a JavaScript set to a JavaScript array.

Array.from

The Array.from static…

Sometimes, we’ve to do convert a JavaScript object’s data into a query string that we can use to make HTTP requests.

In this article, we’ll look at how to encode a JavaScript object into a query string.

URLSearchParams Constructor

We can use the URLSearchParams constructor to let us create query strings easily…