105 lines
1.9 KiB
Markdown
105 lines
1.9 KiB
Markdown
![]() |
---
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id: a5deed1811a43193f9f1c841
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title: Drop it
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challengeType: 5
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forumTopicId: 16010
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dashedName: drop-it
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---
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# --description--
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Given the array `arr`, iterate through and remove each element starting from the first element (the 0 index) until the function `func` returns `true` when the iterated element is passed through it.
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Then return the rest of the array once the condition is satisfied, otherwise, `arr` should be returned as an empty array.
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# --hints--
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`dropElements([1, 2, 3, 4], function(n) {return n >= 3;})` should return `[3, 4]`.
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```js
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assert.deepEqual(
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dropElements([1, 2, 3, 4], function (n) {
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return n >= 3;
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}),
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[3, 4]
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);
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```
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`dropElements([0, 1, 0, 1], function(n) {return n === 1;})` should return `[1, 0, 1]`.
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```js
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assert.deepEqual(
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dropElements([0, 1, 0, 1], function (n) {
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return n === 1;
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}),
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[1, 0, 1]
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);
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```
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`dropElements([1, 2, 3], function(n) {return n > 0;})` should return `[1, 2, 3]`.
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```js
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assert.deepEqual(
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dropElements([1, 2, 3], function (n) {
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return n > 0;
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}),
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[1, 2, 3]
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);
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```
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`dropElements([1, 2, 3, 4], function(n) {return n > 5;})` should return `[]`.
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```js
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assert.deepEqual(
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dropElements([1, 2, 3, 4], function (n) {
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return n > 5;
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}),
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[]
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);
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```
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`dropElements([1, 2, 3, 7, 4], function(n) {return n > 3;})` should return `[7, 4]`.
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```js
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assert.deepEqual(
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dropElements([1, 2, 3, 7, 4], function (n) {
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return n > 3;
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}),
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[7, 4]
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);
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```
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`dropElements([1, 2, 3, 9, 2], function(n) {return n > 2;})` should return `[3, 9, 2]`.
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```js
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assert.deepEqual(
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dropElements([1, 2, 3, 9, 2], function (n) {
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return n > 2;
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}),
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[3, 9, 2]
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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 dropElements(arr, func) {
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return arr;
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}
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dropElements([1, 2, 3], function(n) {return n < 3; });
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```
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# --solutions--
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```js
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function dropElements(arr, func) {
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while (arr.length && !func(arr[0])) {
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arr.shift();
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}
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return arr;
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}
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```
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