How to calculate operator percentage in javascript

The percent operator (%) in JavaScript calculates the remainder or modulus of two numbers. The remainder is the remaining number after division, and the modulus is the difference between the absolute values ​​of the operands. Usage: used to calculate the remainder or modulus value, the formula is remainder = dividend % divisor or modulus value = Math.abs(dividend % divisor).

Percent Operator in JavaScript

Percent Operator in JavaScript (% ) is used to calculate the remainder of two numbers, which is the number that remains after dividing the dividend by the divisor.

Calculation method:

Remainder = dividend % Divisor

Usage:

% The operator can be used in the following two main situations:

1. Calculate the remainder:

<code class="javascript">const remainder = 10 % 3; // 结果为 1</code>

2. Calculate the modulus Value:

In JavaScript, the % operator can also be used to calculate the modulus value, which is the difference between the absolute values ​​of the operands. It is useful for counting loop times, generating random numbers, or other mathematical calculations.

<code class="javascript">const mod = Math.abs(10 % 3); // 结果为 1</code>

Example:

• Find the remainder after dividing a number by another number:

<code class="javascript">const remainder = 17 % 5; // 结果为 2</code>

• Calculate the number of loops:

<code class="javascript">const numLoops = Math.ceil(100 / 10); // 结果为 10</code>

Notes:

• % Operation The result of the sign is always a remainder or modulo value with the same sign as the dividend.
• If the dividend is 0, NaN will be generated.

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