CODEWITHSUNDEEP
javascript
Johan
Johan

Reputation: 35213

Resharper: "Expression always true"

Why is Resharper saying that the expression is alwaus true? It's !!bar that is highlighted.

I would say that if it should say anything at all about it, it could say that it's always false. Or am I loosing my mind?

function foo(bar){
     bar = !bar ? !!bar : bar;
}

My thought here is that if bar is undefined, it will evaluate to false and be converted to a boolean.

Upvotes: 0

Views: 112

Answers (1)

Eivind Eidheim Elseth
Eivind Eidheim Elseth

Reputation: 2354

I can't answer why resharper says that, but if what you want is to coerce the value into a booolean, couldn't you rewrite it bar = !!bar?

Upvotes: 2

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