“==="的名字是什么?JavaScript 中的运算符 [英] What is the name of "===" operator in JavaScript

问题描述

我想知道 === 运算符是否有广泛认可的名称.类似于 (function () {})();

I was wondering if there is widely recognized name for === operator. Something like "IIFE" for (function () {})();

推荐答案

我想知道 === 运算符是否有广泛认可的名称.

I was wondering if there is widely recognized name for === operator.

我最常听到的名字是严格相等运算符和严格相等运算符.事实证明，可以说，它同时具有这两个名称:

The names I've heard most commonly are strict equality operator and strict equals operator. And it turns out that arguably, it has both those names:

旧规范将其称为严格等于运算符:

The old spec called it the strict equals operator:

11.9.4 严格等于运算符 ( === )

11.9.4 The Strict Equals Operator ( === )

产生式 EqualityExpression : EqualityExpression === RelationalExpression 的计算方式如下: ...

The production EqualityExpression : EqualityExpression === RelationalExpression is evaluated as follows: ...

奇怪的是，它实际上从未在新规范中命名，但最接近的是 这里:

Oddly, it's never actually named in the new spec, but the closest is here:

7.2.13 严格相等比较

7.2.13 Strict Equality Comparison

比较 x === y，其中 x 和 y 是值，产生真或假.这样的比较执行如下:...

The comparison x === y, where x and y are values, produces true or false. Such a comparison is performed as follows:...

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