no-extra-strict
Disallows strict mode directives when already in strict mode.
The "use strict"; directive applies to the scope in which it appears and all inner scopes contained within that scope. Therefore, using the "use strict"; directive in one of these inner scopes is unnecessary.
"use strict";
(function () {
"use strict";
var foo = true;
}());
Rule Details
This rule is aimed at preventing unnecessary "use strict"; directives. As such, it will warn when it encounters a "use strict"; directive when already in strict mode.
Example of incorrect code for this rule:
"use strict";
(function () {
"use strict";
var foo = true;
}());
Examples of correct code for this rule:
"use strict";
(function () {
var foo = true;
}());
(function () {
"use strict";
var foo = true;
}());
Version
This rule was introduced in ESLint v0.3.0 and removed in v1.0.0-rc-1.