When you are working with arrays in JavaScript, you will want to print out the elements of your array.
In a browser environment, you have two options, using the console.log() function or writing it to the DOM.
In this post, we'll see examples of the two best ways to print out your array.
Using the console.log() function
The easiest way to print out an array is to use the console.log() function.
You can loop through each element, printing it out one by one.
First, let's start with our array:
JAVASCRIPTconst array = [1, 2, 3, 4, 5];
Then, let's loop through the array and print out each element:
JAVASCRIPTconst array = [1, 2, 3, 4, 5];
for (let i = 0; i < array.length; i++) {
console.log(array[i]);
}
BASH1
2
3
4
5
Writing the results to the DOM
To write your array to the DOM, you will first need to convert your array to a string.
Thankfully, we can take advantage of the JSON.stringify() function to do this.
We can have the JSON.stringify() function convert our array to a string, and then we can write the string to the DOM.
JAVASCRIPTconst array = [1, 2, 3, 4, 5];
const string = JSON.stringify(array);
document.querySelector(".output").innerHTML = string;
BASH[1, 2, 3, 4, 5]
Here's a full example:
HTML<!DOCTYPE html>
<html>
<head>
<title>JavaScript Array example</title>
</head>
<body>
<pre class="output"></pre>
<script>
const array = [1, 2, 3, 4, 5];
const string = JSON.stringify(array, null, 4);
document.querySelector(".output").innerHTML = string;
</script>
</body>
</html>
BASH[
1,
2,
3,
4,
5
]
You've successfully printed out your array to the DOM!
Conclusion
In this post, we looked at examples of the two best ways to print out your array.
The two ways are using the console.log() function and then writing the results directly to the DOM.
Hopefully, this post has been useful to you!
How to Install Node on Windows, macOS and Linux
How to Set Up Cron Jobs in Linux
How to deploy a .NET app using Docker
How to build a Discord bot using TypeScript
How to deploy a Deno app using Docker
How to deploy a MySQL Server using Docker
How to deploy a Node app using Docker
Using Puppeteer and Jest for End-to-End Testing
How to Scrape the Web using Node.js and Puppeteer
Getting Started with Handlebars.js
Building a Real-Time Note-Taking App with Vue and Firebase
Setting Up Stylus CSS Preprocessor
