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编号==!0 和 bol = 真实性?
原标题:Is bol === !0 and bol == true the same?
  • 时间:2012-01-14 01:33:54
  •  标签:
  • javascript

Is bol === !0 exactly the same as bol == true?

<>>Example:

function myFunction(bol){
    if(bol===!0){
        return 1;
    }else{
        return -1;
    }
}

alert(myFunction(true));//1

如果我决定加以利用,我是否会遇到问题? (不同于法典的可读性)

最佳回答

<代码>1 = 真实 :true,但1 == !0为假。

由于!0true,这相当于bol=真实。 请注意,你应如何利用三个平等标志来确切地了解同样的行为。

<代码>=系指 Java将not<>m>在比较时试图胁迫这些数值。 如果你真的要胁迫want,你将使用=。 然而,在这种情况下,<代码>if将只是强迫你:

if (bol) { ... }

基本不变

if (bol == true) { ... }
问题回答

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