wehub-resource-sync
dde272c4b8
i18n - Build Validation / Validate i18n Builds (24) (push) Has been cancelled
CI - Node.js / Lint (24) (push) Has been cancelled
CI - Node.js / Build (24) (push) Has been cancelled
CI - Node.js / Test (24) (push) Has been cancelled
CI - Node.js / Test - Upcoming Changes (24) (push) Has been cancelled
CI - Node.js / Test - i18n (italian, 24) (push) Has been cancelled
CI - Node.js / Test - i18n (portuguese, 24) (push) Has been cancelled
CD - Docker - GHCR Images / Build and Push Images (push) Has been cancelled
85 lines
1.7 KiB
Markdown
85 lines
1.7 KiB
Markdown
---
|
|
id: 587d7b7e367417b2b2512b24
|
|
title: Use the Conditional (Ternary) Operator
|
|
challengeType: 1
|
|
forumTopicId: 301181
|
|
dashedName: use-the-conditional-ternary-operator
|
|
---
|
|
|
|
# --description--
|
|
|
|
The <dfn>conditional operator</dfn>, also called the <dfn>ternary operator</dfn>, can be used as a one line if-else expression.
|
|
|
|
The syntax is `a ? b : c`, where `a` is the condition, `b` is the code to run when the condition returns `true`, and `c` is the code to run when the condition returns `false`.
|
|
|
|
The following function uses an `if/else` statement to check a condition:
|
|
|
|
```js
|
|
function findGreater(a, b) {
|
|
if(a > b) {
|
|
return "a is greater";
|
|
}
|
|
else {
|
|
return "b is greater or equal";
|
|
}
|
|
}
|
|
```
|
|
|
|
This can be re-written using the conditional operator:
|
|
|
|
```js
|
|
function findGreater(a, b) {
|
|
return a > b ? "a is greater" : "b is greater or equal";
|
|
}
|
|
```
|
|
|
|
# --instructions--
|
|
|
|
Use the conditional operator in the `checkEqual` function to check if two numbers are equal or not. The function should return either the string `Equal` or the string `Not Equal`.
|
|
|
|
# --hints--
|
|
|
|
`checkEqual` should use the conditional operator
|
|
|
|
```js
|
|
assert(/.+?\s*?\?\s*?.+?\s*?:\s*?.+?/.test(__helpers.removeJSComments(code)));
|
|
```
|
|
|
|
`checkEqual(1, 2)` should return the string `Not Equal`
|
|
|
|
```js
|
|
assert(checkEqual(1, 2) === 'Not Equal');
|
|
```
|
|
|
|
`checkEqual(1, 1)` should return the string `Equal`
|
|
|
|
```js
|
|
assert(checkEqual(1, 1) === 'Equal');
|
|
```
|
|
|
|
`checkEqual(1, -1)` should return the string `Not Equal`
|
|
|
|
```js
|
|
assert(checkEqual(1, -1) === 'Not Equal');
|
|
```
|
|
|
|
# --seed--
|
|
|
|
## --seed-contents--
|
|
|
|
```js
|
|
function checkEqual(a, b) {
|
|
|
|
}
|
|
|
|
checkEqual(1, 2);
|
|
```
|
|
|
|
# --solutions--
|
|
|
|
```js
|
|
function checkEqual(a, b) {
|
|
return a === b ? "Equal" : "Not Equal";
|
|
}
|
|
```
|