typescript中求等
时间: 2023-10-11 14:11:50 浏览: 47
在TypeScript中,可以使用`===`来进行相等性比较操作。这个操作符用于检查两个值是否严格相等,包括值和类型。它返回一个布尔值,如果两个值相等,则返回true;否则返回false。例如,可以使用`===`来比较两个数字是否相等:
```typescript
const num1 = 10;
const num2 = 10;
console.log(num1 === num2); // true
```
在上面的例子中,`num1`和`num2`都是数字10,因此`num1 === num2`的结果为true。如果我们尝试比较一个数字和一个字符串,结果将为false:
```typescript
const num = 10;
const str = "10";
console.log(num === str); // false
```
在这个例子中,`num`和`str`虽然值相等,但类型不同,因此`num === str`的结果为false。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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