Disable JSHint warning: Expected an assignment or function call and instead saw an expression [duplicate]

问题

This question already has answers here:

Expected an assignment or function call and instead saw an expression (4 answers)

Why does jshint not recognize an assignment as an expression? (8 answers)

Closed 4 years ago.

I have the following line:

imageUrl && (data.imageUrl = imageUrl);

For this line, JSHint complains:

 Expected an assignment or function call and instead saw an expression.

I understand the warning, but I want to disable it. I can’t find the way how to do it. Any idea?

回答1:

If it really is just that one line

imageUrl && (data.imageUrl = imageUrl); // jshint ignore:line

I am a fan of writing code so it doesn't produce warnings, though, even if this means taking special action to do so. So I'd prefer

if (imageUrl) data.imageUrl = imageUrl;

回答2:

Include a /* jshint expr: true */ comment in your Javascript.

Reference: http://jshint.com/docs/options/#expr

来源：https://stackoverflow.com/questions/27623822/disable-jshint-warning-expected-an-assignment-or-function-call-and-instead-saw