CODEWITHSUNDEEP
javascriptjshint
JL_SO
JL_SO

Reputation: 1901

jshint: 'use the function form of "use strict"' and 'document is not defined' in simple javascript file

I have bundled these together because I think they are related. The most simplest of simple bits of code:

'use strict';
const x = document.querySelector('#score strong');

is resulting in the following

"use the function form of use strict (W097)"
"document is not defined (W117)"

which may be errors or warnings; the W suggests a warning but I don't know how to determine this.

So, another question: are these warnings, or errors, and how can I tell this for myself? Where is this referenced?

I am using Atom 1.31, with I think JSHint (whatever that is - I am new to all this). I am using ES6 - .jshintrc:

{
"esversion": 6
}

How should I be specifying use strict globally? Putting it in a function so that it's used globally means, er, putting the whole contents of my script inside a function. No? Yes?

And how do I circumvent this document is not defined thing? I have tried 

const document=this.document;
const document=global.document;
const document=window.document;

All result in warnings/errors (whatever).

So, to be clear, my questions are:

  1. are these warnings, or errors, and how can I tell this for myself?

  2. how do I and indeed do I need to, circumvent the use strict thing?

  3. how do I and indeed do I need to, circumvent the document is not defined thing?

Upvotes: 1

Views: 2825

Answers (1)

Ry-
Ry-

Reputation: 224905

You’ll need to set the strict option to prefer a global 'use strict', and the browser option to tell JSHint that your script targets browsers.

.jshintrc

{
    "esversion": 6,
    "browser": true,
    "strict": "global"
}

And yes, “W” at the beginning of a code means “warning”.

Upvotes: 8

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