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JavaScript JavaScript Basics (Retired) Introducing JavaScript Your First JavaScript Program

Vaish Kasi
Vaish Kasi
674 Points
Posted by Vaish Kasi
Vaish Kasi
674 Points

Is there a specific reason for using single quotes? Using double quotes too works fine. Could you explain the difference

I just tried the below code in the workspace and both of it works just fine.

alert('Hi This One'); document.write("<h1> testing in javascript <h1>");

Any specific reason for using the double quotes ?

2 Answers

Tijo Thomas
Tijo Thomas
9,737 Points
Tijo Thomas
Tijo Thomas
9,737 Points

It's really just preference. Keep in mind, when working with JSON double quotes are required for valid JSON. Here's a link to a similar question.

edinjusupovic
edinjusupovic
5,664 Points
edinjusupovic
edinjusupovic
5,664 Points

It's preferential, however, sometimes it is necessary unless you wish to use the escape feature to ignore the single quote, as in my second example.

For example, say your code is;

alert("Hello, my name's john!");

alert('Hello, my name's john!");

The second alert is not executed properly as a result of the single quote in "name's" so instead of single quotes, we use double quotes in a case like this.