除法赋值（/=）
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2015年7月.
除法赋值（/=）运算符将变量除以右操作数的值，并将结果赋值给该变量。
尝试一下
let a = 3;
a /= 2;
console.log(a);
// Expected output: 1.5
a /= 0;
console.log(a);
// Expected output: Infinity
a /= "hello";
console.log(a);
// Expected output: NaN
语法
js
x /= y // x = x / y
示例
使用除法赋值
js
let bar = 5;
bar /= 2; // 2.5
bar /= 2; // 1.25
bar /= 0; // Infinity
bar /= "foo"; // NaN
规范
| Specification |
|---|
| ECMAScript® 2026 Language Specification # sec-assignment-operators |
浏览器兼容性
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