除法 (/)

除法运算符 (/) 计算了两个操作数的商，左边的数是被除数，右边的是除数

The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

语法

Operator: x / y

例子

基本除法

1 / 2              // 0.5

Math.floor(3 / 2) // 1

1.0 / 2.0         // 0.5

除以0

2.0 / 0     // Infinity

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

2.0 / -0.0  // -Infinity

规范

浏览器兼容性

参见

• Addition operator
• Subtraction operator
• Multiplication operator
• Remainder operator
• Exponentiation operator
• Increment operator
• Decrement operator
• Unary negation operator
• Unary plus operator