41 lines
1.2 KiB
Markdown
41 lines
1.2 KiB
Markdown
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---
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title: Comparison with the Strict Inequality Operator
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localeTitle: 与严格不等式算子的比较
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---
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## 与严格不等式算子的比较
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### 问题解释：
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· _将`strict inequality operator`添加到`if`语句，以便当`val`不严格等于`17`时，函数将返回“Not Equal”。_
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#### 提示1
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如果第一个值不等于考虑值类型的第二个值，则严格不等式运算符（ `!==` ）将返回`true` 。
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> _现在尝试解决问题_
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## 扰流板警报！
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**提前解决！**
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## 基本代码解决方案
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```javascript
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function testStrictNotEqual(val) {
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if (val !== 17) {
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return "Not equal";
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}
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return "Equal";
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}
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// Change this value to test
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testStrictNotEqual(10);
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```
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### 代码说明
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该函数首先计算`if`条件`(val !== 17)`计算结果为`true`考虑价值和价值型。如果是，则返回花括号之间的语句（“不等于”）。如果没有，则返回它们之外的下一个`return`语句（“Equal”）。
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### 资源
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* [“非身份/严格不平等（！==）” - _MDN JavaScript参考_](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators#Non-identity_strict_inequality_(!))
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