Question

110

Is it possible to have a comment inside a es6 Template-String?

rated 0 times [ 115] [ 5] / answers: 1 / hits: 17845 / 8 Years ago, fri, october 14, 2016, 12:00:00

Let's say we have a multiline es6 Template-String to describe e.g. some URL params for a request:

const fields = `

    id,

    message,

    created_time,

    permalink_url,

    type

`;

Is there any way to have comments inside that backtick Template-String? Like:

const fields = `

    // post id

    id,

    // post status/message

    message,

    // .....

    created_time,

    permalink_url,

    type

`;

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answered 8 Years ago isaacvalentinn · Accepted Answer

No.

That syntax is valid, but will just return a string containing n// post idnid, rather than removing the comments and creating a string without them.

If you look at §11.8.6 of the spec, you can see that the only token recognized between the backtick delimiters is TemplateCharacters, which accepts escape sequences, line breaks, and normal characters. In §A.1, SourceCharacter is defined to be any Unicode point (except the ones excluded in 11.8.6).