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Tom
70 lines
1.4 KiB
Markdown
70 lines
1.4 KiB
Markdown
---
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id: 69f35a5bb823ed620fcb7cbc
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title: "Challenge 283: String Zipper"
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challengeType: 28
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dashedName: challenge-283
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---
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# --description--
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Given two strings, return a new string that interleaves their characters one at a time. If one string is longer, append the remaining characters at the end.
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Begin with the first character of the first string.
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# --hints--
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`zipStrings("abc", "123")` should return `"a1b2c3"`.
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```js
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assert.equal(zipStrings("abc", "123"), "a1b2c3");
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```
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`zipStrings("acegikmoqsuwy", "bdfhjlnprtvxz")` should return `"abcdefghijklmnopqrstuvwxyz"`.
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```js
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assert.equal(zipStrings("acegikmoqsuwy", "bdfhjlnprtvxz"), "abcdefghijklmnopqrstuvwxyz");
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```
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`zipStrings("day", "night")` should return `"dnaiyght"`.
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```js
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assert.equal(zipStrings("day", "night"), "dnaiyght");
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```
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`zipStrings("python", "javascript")` should return `"pjyatvhaosncript"`.
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```js
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assert.equal(zipStrings("python", "javascript"), "pjyatvhaosncript");
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```
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`zipStrings("feCdCm", "reoeap")` should return `"freeCodeCamp"`.
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```js
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assert.equal(zipStrings("feCdCm", "reoeap"), "freeCodeCamp");
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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 zipStrings(a, b) {
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return a;
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}
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```
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# --solutions--
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```js
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function zipStrings(a, b) {
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let result = '';
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const len = Math.max(a.length, b.length);
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for (let i = 0; i < len; i++) {
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if (i < a.length) result += a[i];
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if (i < b.length) result += b[i];
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}
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return result;
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}
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```
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