## What does % do in JavaScript?

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What does the % do in JavaScript?

A definition of what it is and what it does would be much appreciated.

It's a modulo operator. See this documentation or the specification for more information on JavaScript arithmetic operators.

% (Modulus)

The modulus operator is used as follows:

var1 % var2

The modulus operator returns the first operand modulo the second operand, that is, var1 modulo var2, in the preceding statement, where var1 and var2 are variables. The modulo function is the integer remainder of dividing var1 by var2. For example, 12 % 5 returns 2. The result will have the same sign as var1; that is, −1 % 2 returns −1.

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ES6 Update:

As explained in other answers, it returns the remainder after dividing the dividend by divisor, however this is no longer modulo operator, this is remainder operator. the difference being that the modulo operator result would take the sign of the divisor, not the dividend.Quoted from MDN

The remainder operator returns the remainder left over when one operand is divided by a second operand. It always takes the sign of the dividend, not the divisor. It uses a built-in modulo function to produce the result, which is the integer remainder of dividing `var1` by `var2` — for example — `var1 modulo var2`. There is a proposal to get an actual modulo operator in a future version of ECMAScript, the difference being that the modulo operator result would take the sign of the divisor, not the dividend.

Example:

```-10 % 3 // -1
10 % -3 // 1
```

What does this symbol mean in JavaScript?, Originally Answered: What does \$ means in JavaScript? Nothing special . JavaScript (programming language): How do you use this piece of JavaScript code? The modulus operator is used as follows: var1 % var2. The modulus operator returns the first operand modulo the second operand, that is, var1 modulo var2, in the preceding statement, where var1 and var2 are variables. The modulo function is the integer remainder of dividing var1 by var2.

It returns the remainder of a division operation. `5%2` returns `1`

What does \$ mean in JavaScript?, It has many names: question mark, question — colon, ternary operator. While the syntax is pretty straight forward, describing the JavaScript  Modulus (%) operator returns only the remainder. If either value is a string, an attempt is made to convert the string to a number. would result in the remainder of 2 being stored in the variable resultOfMod. The modulus operator behaves differently for special values: If the operands are numbers, regular arithmetic division is performed, and

That would be the modulo operator.

It returns the remainder of a division operation:

```var remainder = 3 % 2; // equals 1
```

What does the ? question mark mean in JavaScript code?, do in JavaScript? You might find the `!!` operator used in the wild. What does it mean? Published Sep 01, 2019. This is particularly useful in JavaScript since defining fields as private or public is done without the use of the private and public keywords (at least this is true in the versions of JavaScript used in web browsers — JavaScript 2.0 does allow these keywords).

It is a modulo operator. It calculates the remainder.

If we do 23 % 10, first, we divide 23 by 10 which equals 2.3 then take .3 * (the divisor) 10 = 3

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