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javascript 转换 #38

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hsipeng opened this issue Mar 16, 2018 · 0 comments

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javascript 取整

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hsipeng commented Mar 16, 2018

一、取整
1，直接取整（丢弃小数部分）

var num = parseInt(5/3);  // 1

2，四舍五入取整

var num = Math.round(5/3);  // 2

3，向上取整

var num = Math.ceil(5/3);  // 2

4，向下取整

var num = Math.floor(5/3);  // 1

参考连接

保留小数点后N位

hsipeng added 取整 javascript labels

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