Js优化+技巧

1、String转化为Number

+'45'  //number

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2、Number转化为String

' ' +4 //string

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3、float转Int

~~3.14159
// => 3
~~5.678
// => 5

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4、颜色随机色

('00000'+(0|Math.random()*(1<<24)).toString(16)).slice(-6)

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5、数组排序

[1,9,8,10].sort((a, b) => a - b)  //[1, 8, 9, 10]

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转载于:https://www.cnblogs.com/vhen/p/7569714.html