How to Add Multiple Spaces in Javascript
In this tutorial, you will learn how to add multiple spaces in javascript. Many different characters make up a string. If a space appears at the beginning or end of a string, its meaning may or may not be clear. For a newbie developer, it can be a bit tricky to add multiple spaces.
There are numerous ways to add multiple spaces. But for the sake of simplicity, we will make use of addition operator (+
) which helps in concatenating two individual strings and repeat()
method which will return a new string that has certain number of copies of a string.
In the following example, we have one global variable that holds a string. Upon click of a button, we will add multiple spaces in the string and display the result on the screen. Please have a look over the code example and the steps given below.
HTML & CSS
- We have 3 elements in the HTML file (
div
,button
, andh1
). Thediv
element is just a wrapper for the rest of the elements. - The
innerText
for thebutton
element is“Add”
and for theh1
element, it is“Result”
. - We have done some basic styling using CSS and added the link to our
style.css
stylesheet inside thehead
element. - We have also included our javascript file
script.js
with ascript
tag at the bottom.
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <link rel="stylesheet" href="style.css"> <title>Document</title> </head> <body> <div class="container"> <button>Add</button> <pre>Result</pre> </div> <script src="script.js"></script> </body> </html>
.container { text-align: center; } button { margin-top: 10px; padding: 10px 20px; }
Javascript
- We have selected the
button
element andh1
element using thedocument.querySelector()
method and stored them inbtnAdd
andoutput
variables respectively. - We have a global variable
myString
which holds a string as its value. - We are displaying
myString
in thepre
element usinginnerText
property. - We have attached a
click
event listener to thebutton
element. - In the event handler function, we have a single empty space stored in the
mySpace
variable. We are usingrepeat()
method and passing it 2 as a parameter. As a result, it will return 2 spaces. - We are adding it to the
myString
at the beginning and the end using addition operator (+
). Now, we have 2 blank spaces at the beginning and the end. - We are storing the final string in the
result
variable. It will not be clearly visible in the HTML document, but you can check developer console window in Chrome to see the actual output. - We are displaying the
result
in thepre
element using theinnerText
property.
let btnAdd = document.querySelector("button"); let output = document.querySelector("pre"); let myString = `Time seems to be passing too slow`; output.innerText = myString; btnAdd.addEventListener("click", () => { let mySpace = " " let result = mySpace.repeat(2) + myString + mySpace.repeat(2); console.log(result); output.innerText = result; });