97 lines
2.3 KiB
Markdown
97 lines
2.3 KiB
Markdown
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---
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id: 587d7b7e367417b2b2512b21
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title: Use Multiple Conditional (Ternary) Operators
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challengeType: 1
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videoUrl: 'https://scrimba.com/c/cyWJBT4'
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forumTopicId: 301179
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dashedName: use-multiple-conditional-ternary-operators
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---
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# --description--
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In the previous challenge, you used a single conditional operator. You can also chain them together to check for multiple conditions.
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The following function uses `if`, `else if`, and `else` statements to check multiple conditions:
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```js
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function findGreaterOrEqual(a, b) {
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if (a === b) {
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return "a and b are equal";
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}
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else if (a > b) {
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return "a is greater";
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}
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else {
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return "b is greater";
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}
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}
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```
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The above function can be re-written using multiple conditional operators:
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```js
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function findGreaterOrEqual(a, b) {
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return (a === b) ? "a and b are equal"
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: (a > b) ? "a is greater"
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: "b is greater";
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}
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```
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It is considered best practice to format multiple conditional operators such that each condition is on a separate line, as shown above. Using multiple conditional operators without proper indentation may make your code hard to read. For example:
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```js
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function findGreaterOrEqual(a, b) {
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return (a === b) ? "a and b are equal" : (a > b) ? "a is greater" : "b is greater";
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}
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```
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# --instructions--
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In the `checkSign` function, use multiple conditional operators - following the recommended format used in `findGreaterOrEqual` - to check if a number is positive, negative or zero. The function should return `positive`, `negative` or `zero`.
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# --hints--
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`checkSign` should use multiple conditional operators
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```js
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assert(/.+?\s*?\?\s*?.+?\s*?:\s*?.+?\s*?\?\s*?.+?\s*?:\s*?.+?/gi.test(code));
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```
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`checkSign(10)` should return the string `positive`. Note that capitalization matters
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```js
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assert(checkSign(10) === 'positive');
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```
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`checkSign(-12)` should return the string `negative`. Note that capitalization matters
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```js
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assert(checkSign(-12) === 'negative');
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```
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`checkSign(0)` should return the string `zero`. Note that capitalization matters
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```js
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assert(checkSign(0) === 'zero');
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```
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# --seed--
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## --seed-contents--
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```js
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function checkSign(num) {
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}
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checkSign(10);
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```
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# --solutions--
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```js
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function checkSign(num) {
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return (num > 0) ? 'positive' : (num < 0) ? 'negative' : 'zero';
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}
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```
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