The new math and Number methods in ES6, I think they are very good. Friends who need them can refer to them.
The new math and Number methods in ES6 are summarized below. Some of them I think are useful
Nunber.isInteger() determines whether it is an integer. It should be noted that 1 and 1.0 will be considered integers
##
console.log(Number.isInteger(1.0))//true
console.log(Number.isInteger(1))//true
console.log(Number.isInteger("1"))//false
console.log(Number.isInteger("1.1"))//false##
console.log(Math.sign(1))//1 console.log(Math.sign(-1))//-1 console.log(Math.sign(0))//0 console.log(Math.sign(-0))//0 console.log(Math.sign(NaN))//NaN console.log(Math.sign(undefined))//NaN console.log(Math.sign(null))//0
console.log(Math.cbrt(8))//2 Math.hypot()返回所有参数的平方和的平方根 console.log(Math.hypot(4,3))//25再开方结果为5
console.log(2**2) //4 console.log(2**3) //8
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