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60 lines
1.2 KiB
Markdown
60 lines
1.2 KiB
Markdown
---
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id: 699c8e045ee7cb94ed2322db
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title: "Challenge 220: Largest Number"
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challengeType: 28
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dashedName: challenge-220
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---
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# --description--
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Given a string of numbers separated by various punctuation, return the largest number.
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- The given string will only contain numbers and separators.
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- Separators can be commas (`","`), exclamation points (`"!"`), question marks (`"?"`), colons (`":"`), or semi-colons (`";"`).
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# --hints--
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`largestNumber("1,2")` should return `2`.
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```js
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assert.equal(largestNumber("1,2"), 2);
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```
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`largestNumber("4;15:60,26?52!0")` should return `60`.
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```js
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assert.equal(largestNumber("4;15:60,26?52!0"), 60);
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```
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`largestNumber("-402,-1032!-569:-947;-633?-800!-1012;-402,-723?-8102!-3011")` should return `-402`.
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```js
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assert.equal(largestNumber("-402,-1032!-569:-947;-633?-800!-1012;-402,-723?-8102!-3011"), -402);
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```
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`largestNumber("12;-50,99.9,49.1!-10.1?88?16")` should return `99.9`.
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```js
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assert.equal(largestNumber("12;-50,99.9,49.1!-10.1?88?16"), 99.9);
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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 largestNumber(str) {
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return str;
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}
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```
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# --solutions--
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```js
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function largestNumber(str) {
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const numbers = str.split(/[,!?:;]/).map(Number);
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return Math.max(...numbers);
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}
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```
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