Created
November 7, 2016 11:01
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[JS] Why use strict mode in JavaScript
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| function withoutStrict() { | |
| console.log(this) | |
| } | |
| function withStrict() { | |
| "use strict"; | |
| console.log(this) | |
| } | |
| withoutStrict() //object window | |
| withStrict() //undefined |
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