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I saw a piece of javascript code similar to the one below. I understand the eval() function but don't understand the purpose of the first pair of parenthesis around the function name and another parameter. Thank you for the help. 

(1,eval)("function Func() {}")
R.J. Dunnill
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George Lei
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  • Where have you seen the code. `(1,eval)` is an expression which will return `eval` because comma operator returns last expression of all the expression which are separated. – Maheer Ali May 15 '19 at 04:43
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    @MaheerAli I think the purpose is to remove the implicit `window` calling context – CertainPerformance May 15 '19 at 04:45

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