How to enable javascript strict mode using 'use strict'?

Question

How to enable javascript strict mode using 'use strict'?

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Anybody know how to enable strict mode? in simulator or device.

just adding 'use strict' at the first line of the each file didn't work for me.

ECMA Script5 strict mode

2 Answers

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why exactly do you want to do this?

— commented 10 months ago by Stephen Feather
I ask because most javascript "programmers" (read: web monkeys) do not understand the ramifications of using strict mode.

— commented 10 months ago by Stephen Feather
(I am not saying that Jung Wook Son isn't a real programmer, I was just asking why he thought this was important)

— commented 10 months ago by Stephen Feather
All of the team members are not Javascript ninja :) it's convenient way to get rid of simple mistakes. I have already enabled strict mode in server-side code(node.js), and I satisfied with its result. It is good for me to reduce the time of code review process.

— commented 10 months ago by Jung Wook Son

Answer 1

i did not think you could enable it, only get the validator to generate errors/warnings by setting the Validation properties on the project with JSLint

Answer 2

You can use strict mode by just adding "use strict" at the first line on v8, but I don't think it's available on JSC (iOS). Note that you need to specify "use strict" in every CommonJs module because every CommonJs module is new JS context (new and clean JS environment).