# How do you do remainders in JavaScript?

## How do you do remainders in JavaScript?

The JavaScript modulo operator returns the remainder of a division sum. To calculate the remainder of a division sum, use the percentage sign (%). The syntax for the modulo operator is: (number_one % number_two).

What does remainder mean in JavaScript?

Remainder (%) 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.

How do you check if there is a remainder in JavaScript?

1 Answer. In JavaScript, you can use the “remainder” operator which uses a built-in modulo function in the JavaScript engine to give you the remainder of the division operation. The syntax is “var1 % var2”, which will give you the remainder of var1 divided by var2.

### How do you use remainders?

If you get a remainder, you do the multiplication and then add the remainder back in. For instance, since 13 ÷ 5 = 2 R 3, then 13 = 5 × 2 + 3. This process works the same way with polynomials.

Is multiple of JavaScript?

Use the % (modulus) operator in Javascript and PHP, which returns the remainder when a is divided by b in a % b . The remainder will be zero when a is a multiple of b . Ex. You can use the modulus to find the remainder after a division and then if the remainder is equal to zero then it’s a multiple.

What is the remainder when 5 75 divided by 3?

Remainder is 2 if we divide 5³ with 3. That means for even numbers of power Remainder will be 1 and for odd numbers of power Remainder will be 2. Here, 75 is an odd number so remainder will be 2.

## What does two dots mean in JavaScript?

First dot is actually a decimal point, just let JavaScript Compiler know the second dot wants to invoke property or method. And 255. toString(16) makes JavaScript Compiler confused(identifier starts immediately after decimal numeric literal).

Is JavaScript used for backend?

JavaScript is used in both Back End and Front End Development. JavaScript is used across the web development stack. That’s right: it’s both front end and backend.

What does the alert method do in JavaScript?

The alert () method in JavaScript is used to display a virtual alert box. It is mostly used to give a warning message to the users. It displays an alert dialog box that consists of some specified message (which is optional) and an OK button.

### When to use the remainder operator in JavaScript?

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. The source for this interactive example is stored in a GitHub repository.

When is the remainder always negative in JavaScript?

When the first operand is a negative value, the return value will always be negative, and vice versa for positive values. In the example above, 10 can be subtracted four times from 42 before there is not enough left to subtract again without it changing sign. The remainder is thus: 42 – 4 * 10 = 2.

Why does JavaScript alert box disappear after a certain time?

If you want an alert to appear after a certain about time, you can use this code: If you want an alert to appear and disappear after a specified interval has passed, then you’re out of luck. When an alert has fired, the browser stops processing the javascript code until the user clicks “ok”. This happens again when a confirm or prompt is shown. 06/03/2019