Merge remote-tracking branch 'origin/master'
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72
README.md
72
README.md
@ -102,8 +102,10 @@ average(1, 2, 3);
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* [`difference`](#difference)
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* [`differenceBy`](#differenceby)
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* [`differenceWith`](#differencewith)
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* [`dropWhile`](#dropWhile)
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* [`drop`](#drop)
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* [`dropRight`](#dropright)
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* [`dropRightWhile`](#droprightwhile)
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* [`dropWhile`](#dropwhile)
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* [`everyNth`](#everynth)
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* [`filterNonUnique`](#filternonunique)
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* [`findLast`](#findlast)
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@ -842,25 +844,23 @@ differenceWith([1, 1.2, 1.5, 3, 0], [1.9, 3, 0], (a, b) => Math.round(a) === Mat
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<br>[⬆ Back to top](#table-of-contents)
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### dropWhile
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### drop
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Removes elements in an array until the passed function returns `true`. Returns the remaining elements in the array.
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Returns a new array with `n` elements removed from the left.
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Loop through the array, using `Array.slice()` to drop the first element of the array until the returned value from the function is `true`.
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Returns the remaining elements.
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Use `Array.slice()` to slice the remove the specified number of elements from the left.
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```js
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const dropWhile = (arr, func) => {
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while (arr.length > 0 && !func(arr[0])) arr = arr.slice(1);
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return arr;
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};
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const drop = (arr, n = 1) => arr.slice(n);
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```
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<details>
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<summary>Examples</summary>
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```js
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dropWhile([1, 2, 3, 4], n => n >= 3); // [3,4]
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drop([1, 2, 3]); // [2,3]
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drop([1, 2, 3], 2); // [3]
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drop([1, 2, 3], 42); // []
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```
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</details>
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@ -892,6 +892,58 @@ dropRight([1, 2, 3], 42); // []
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<br>[⬆ Back to top](#table-of-contents)
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### dropRightWhile
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Removes elements from the end of an array until the passed function returns `true`. Returns the remaining elements in the array.
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Loop through the array, using `Array.slice()` to drop the last element of the array until the returned value from the function is `true`.
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Returns the remaining elements.
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```js
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const dropRightWhile = (arr, func) => {
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while (arr.length > 0 && !func(arr[arr.length - 1])) arr = arr.slice(0, -1);
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return arr;
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};
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```
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<details>
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<summary>Examples</summary>
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```js
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dropRightWhile([1, 2, 3, 4], n => n < 3); // [1, 2]
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```
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</details>
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<br>[⬆ Back to top](#table-of-contents)
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### dropWhile
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Removes elements in an array until the passed function returns `true`. Returns the remaining elements in the array.
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Loop through the array, using `Array.slice()` to drop the first element of the array until the returned value from the function is `true`.
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Returns the remaining elements.
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```js
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const dropWhile = (arr, func) => {
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while (arr.length > 0 && !func(arr[0])) arr = arr.slice(1);
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return arr;
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};
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```
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<details>
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<summary>Examples</summary>
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```js
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dropWhile([1, 2, 3, 4], n => n >= 3); // [3,4]
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```
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</details>
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<br>[⬆ Back to top](#table-of-contents)
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### everyNth
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Returns every nth element in an array.
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File diff suppressed because one or more lines are too long
@ -7,7 +7,7 @@ Returns the remaining elements.
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```js
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const dropRightWhile = (arr, func) => {
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while (arr.length > 0 && !func(arr[arr.length-1])) arr = arr.slice(0, -1);
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while (arr.length > 0 && !func(arr[arr.length - 1])) arr = arr.slice(0, -1);
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return arr;
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};
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```
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