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77 lines
1.6 KiB
Markdown
77 lines
1.6 KiB
Markdown
---
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id: 691b559495c5cb5a37b9b488
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title: "Challenge 128: Consonant Count"
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challengeType: 28
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dashedName: challenge-128
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---
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# --description--
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Given a string and a target number, determine whether the string contains exactly the target number of consonants.
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- Consonants are all alphabetic characters except `"a"`, `"e"`, `"i"`, `"o"`, and `"u"` in any case.
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- Ignore digits, punctuation, spaces, and other non-letter characters when counting.
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# --hints--
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`hasConsonantCount("helloworld", 7)` should return `true`.
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```js
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assert.isTrue(hasConsonantCount("helloworld", 7));
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```
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`hasConsonantCount("eieio", 5)` should return `false`.
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```js
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assert.isFalse(hasConsonantCount("eieio", 5));
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```
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`hasConsonantCount("freeCodeCamp Rocks!", 11)` should return `true`.
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```js
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assert.isTrue(hasConsonantCount("freeCodeCamp Rocks!", 11));
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```
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`hasConsonantCount("Th3 Qu!ck Br0wn F0x Jump5 0ver Th3 L@zy D0g.", 24)` should return `false`.
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```js
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assert.isFalse(
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hasConsonantCount("Th3 Qu!ck Br0wn F0x Jump5 0ver Th3 L@zy D0g.", 24)
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);
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```
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`hasConsonantCount("Th3 Qu!ck Br0wn F0x Jump5 0ver Th3 L@zy D0g.", 23)` should return `true`.
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```js
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assert.isTrue(
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hasConsonantCount("Th3 Qu!ck Br0wn F0x Jump5 0ver Th3 L@zy D0g.", 23)
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);
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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 hasConsonantCount(text, target) {
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return text;
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}
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```
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# --solutions--
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```js
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function hasConsonantCount(text, target) {
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const vowels = new Set(["a", "e", "i", "o", "u"]);
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let count = 0;
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for (const char of text.toLowerCase()) {
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if (/[a-z]/.test(char) && !vowels.has(char)) {
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count++;
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}
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}
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return count === target;
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}
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```
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