ee1e8abd87
* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
71 lines
1.5 KiB
Markdown
71 lines
1.5 KiB
Markdown
---
|
|
id: 56533eb9ac21ba0edf2244ae
|
|
title: Finding a Remainder in JavaScript
|
|
challengeType: 1
|
|
videoUrl: 'https://scrimba.com/c/cWP24Ub'
|
|
forumTopicId: 18184
|
|
dashedName: finding-a-remainder-in-javascript
|
|
---
|
|
|
|
# --description--
|
|
|
|
The <dfn>remainder</dfn> operator `%` gives the remainder of the division of two numbers.
|
|
|
|
**Example**
|
|
|
|
<blockquote>5 % 2 = 1 because<br>Math.floor(5 / 2) = 2 (Quotient)<br>2 * 2 = 4<br>5 - 4 = 1 (Remainder)</blockquote>
|
|
|
|
**Usage**
|
|
In mathematics, a number can be checked to be even or odd by checking the remainder of the division of the number by `2`.
|
|
|
|
<blockquote>17 % 2 = 1 (17 is Odd)<br>48 % 2 = 0 (48 is Even)</blockquote>
|
|
|
|
**Note**
|
|
The <dfn>remainder</dfn> operator is sometimes incorrectly referred to as the "modulus" operator. It is very similar to modulus, but does not work properly with negative numbers.
|
|
|
|
# --instructions--
|
|
|
|
Set `remainder` equal to the remainder of `11` divided by `3` using the <dfn>remainder</dfn> (`%`) operator.
|
|
|
|
# --hints--
|
|
|
|
The variable `remainder` should be initialized
|
|
|
|
```js
|
|
assert(/var\s+?remainder/.test(code));
|
|
```
|
|
|
|
The value of `remainder` should be `2`
|
|
|
|
```js
|
|
assert(remainder === 2);
|
|
```
|
|
|
|
You should use the `%` operator
|
|
|
|
```js
|
|
assert(/\s+?remainder\s*?=\s*?.*%.*;?/.test(code));
|
|
```
|
|
|
|
# --seed--
|
|
|
|
## --after-user-code--
|
|
|
|
```js
|
|
(function(y){return 'remainder = '+y;})(remainder);
|
|
```
|
|
|
|
## --seed-contents--
|
|
|
|
```js
|
|
// Only change code below this line
|
|
|
|
var remainder;
|
|
```
|
|
|
|
# --solutions--
|
|
|
|
```js
|
|
var remainder = 11 % 3;
|
|
```
|