What does % in js mean?

Modulo operation is the remainder obtained after division operation. In JavaScript, the % operator is used for modulo operation. This operator accepts dividend and divisor as operands. It is widely used in parity detection, random number generation, time unit conversion, and encryption technology.

% in js is the modulo operator

What is the modulo operator?

Modulo operation, also called modular operation, represents the remainder obtained after division operation.

Usage of % operator in js

In JavaScript, the % operator accepts two operands: dividend (dividend) and divisor (divisor). It returns the remainder after dividing the dividend by the divisor.

Syntax:

<code>result = dividend % divisor;</code>

Example:

<code>console.log(10 % 3); // 1
console.log(15 % 4); // 3
console.log(20 % 5); // 0</code>

Application of modulo operation

The modulo operation has many applications in JavaScript, including:

• Detecting parity: The remainder of a number divided by 2 is 0, which means the number is even, otherwise it is odd number.
• Generate random numbers: Use the Math.random() function and the modulo operation to generate random numbers within a specified range.
• Time unit conversion: Use the modulo operation when converting seconds to hours, minutes, or other time units.
• Encryption technology: Modulo operations are used in hash functions and digital signatures to generate security keys.

The above is the detailed content of What does % in js mean?. For more information, please follow other related articles on the PHP Chinese website!