JavaScript metrics

Question

How do you execute exponents in JavaScript?

How would you do 12 ^ 2?

Answer 1

There is an exponentiation operator that is part of the final ES7 specification. It is supposed to work similarly with python and matlab:

a**b // will rise a to the power b 

This is now implemented in Edge14, Chrome52 , and is also available with traceur or babel.

Answer 2

Math.pow() :

 js> Math.pow(12, 2) 144 

Answer 3

Math.pow(base, exponent) , for starters.

Example:

 Math.pow(12, 2) 

Answer 4

Math.pow(x, y) works fine for x ^ y and even evaluates an expression when y is not an integer. A piece of code that does not rely on Math.pow , but which can only evaluate integer metrics:

 function exp(base, exponent) { exponent = Math.round(exponent); if (exponent == 0) { return 1; } if (exponent < 0) { return 1 / exp(base, -exponent); } if (exponent > 0) { return base * exp(base, exponent - 1) } } 

Answer 5

How we perform metrics in JavaScript
According to MDN
The exponentiation operator returns the result of raising the first operand to the second operand of a degree. That is, var1 var2 in the previous expression, where var1 and var2 are variables. The exponentiation operator is associative on the right: a ** b ** c is equal to a ** (b ** c).
For example:
2**3 // here 2 is multiplied 3 times by 2, and the result will be 8.
4**4 // here 4 multiplies 4 times by 4, and the result is 256.

Answer 6

If you want to find the strength x of y, then

use Math.pow

Example

 document.write(Math.pow(7,2)); 

If you want the exponent to use Math.exp

Example

 document.write(Math.exp(1));