What is the usage of math.sqrt in vue

In vue, the "math.sqrt" method is used to return the square root of a number. It is a built-in method of math. If the set number is a negative number, the returned result is NaN. The syntax is "math.sqrt( value)".

The operating environment of this article: Windows 10 system, Vue version 2.9.6, DELL G3 computer.

What is the usage of math.sqrt in vue

sqrt() method returns the square root of a number.

The syntax is:

Math.sqrt(x)

If x is a negative number, NaN is returned.

Examples are as follows:

  var a = Math.sqrt(0);
  var b = Math.sqrt(1);
  var c = Math.sqrt(9);
  var d = Math.sqrt(64);
  var e = Math.sqrt(-9);

Output results:

0
1
3
8
NaN

Expand knowledge:

Math built-in methods

// Math的内置方法
// 1 random()返回0~1的数字,不包含1
console.log(Math.random());
// 2 round()返回一个四舍五入的数字
console.log(Math.round(1.6)); // 2
// 3 abs()
console.log(Math.abs(-2.566)); // 2.566
// 4 floor()
console.log(Math.floor(2.3)); // 2
// 5 ceil()
console.log(Math.ceil(2.1)); // 3
// 6 max() min
console.log(Math.max(1,2,3,7,8,9,5)); // 9
console.log(Math.min(1,2,3,7,8,9,5)); // 1
// 7 PI
console.log(Math.PI); // 3.141592653589793
// 8 pow(底数,次方)
console.log(Math.pow(2,3)); 8
// 9 sqrt()
console.log(Math.sqrt(4)); // 2

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