相除運算子(/)

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.

相除運算子(/)是用來將兩個值進行相除並取得其商數。其中左運算元是被除數;右運算元是除數。

嘗試一下

語法

js
x / y

範例

基本的除法

js
1 / 2; // 0.5

Math.floor(3 / 2); // 1

1.0 / 2.0; // 0.5

除以零

js
2.0 / 0; // Infinity

2.0 / 0.0; // Infinity, because 0.0 === 0

2.0 / -0.0; // -Infinity

規範

Specification
ECMAScript Language Specification
# sec-multiplicative-operators

瀏覽器相容性

BCD tables only load in the browser

參見