CODEWITHSUNDEEP
javascriptecmascript-6
Elye
Elye

Reputation: 60251

Is there any case where single quote or double quote is still required for JavaScript since we have template literals (backtick quote)?

With the introduction of template literals for JavaScript, it has much advantage over single quote and double quote as per mentioned in https://ponyfoo.com/articles/template-literals-strictly-better-strings.

In term of performance, there's no obvious different between them as stated in https://medium.com/javascript-in-plain-english/are-backticks-slower-than-other-strings-in-javascript-ce4abf9b9fa

So my question is, is there any case where template literals can't be used other than the case of printing "Testing ${something}" where then back-tick need a slash as in `Testing \${something}`

I have checked various related existing Stackoverflow

From the stackoverflows, can't see anything that shows a single quote or double quote is required that can't be achieved by backtick, other than stating it as easier distinguish the different purpose.

Upvotes: 2

Views: 764

Answers (1)

Elye
Elye

Reputation: 60251

What I found is, the following can't use backtick

  1. Object declaration
                const headers2 = {
                    `Accept`: `application/json`,
                    `Content-Type`: `application/json`
                };

This will error Uncaught SyntaxError: Unexpected template string

  1. Importing module
import React from `react`;

This will error stating Parsing error: Unexpected token

Not sure if my findings are legit or there are more cases. Feel free to share.

Updated 3. Using of use strict

    `use strict`;

The above is not functioning without any warning.

Upvotes: 4

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