取余赋值(%=)
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
取余赋值(%=
)运算符将变量除以右操作数的值,并将余数赋值给该变量。
尝试一下
let a = 3;
console.log((a %= 2));
// Expected output: 1
console.log((a %= 0));
// Expected output: NaN
console.log((a %= "hello"));
// Expected output: NaN
语法
js
x %= y // x = x % y
示例
使用取余赋值
js
let bar = 5;
bar %= 2; // 1
bar %= "foo"; // NaN
bar %= 0; // NaN
规范
Specification |
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ECMAScript® 2025 Language Specification # sec-assignment-operators |
浏览器兼容性
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
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Remainder assignment ( x %= y ) |
Legend
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- Full support
- Full support
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