From fe79403085f766ecd013b21e670c864b5aca61c0 Mon Sep 17 00:00:00 2001 From: Angelos Chalaris Date: Tue, 19 Dec 2017 16:38:57 +0200 Subject: [PATCH] Update pullAtValue.md --- snippets/pullAtValue.md | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-) diff --git a/snippets/pullAtValue.md b/snippets/pullAtValue.md index e7b3fd44e..64798068f 100644 --- a/snippets/pullAtValue.md +++ b/snippets/pullAtValue.md @@ -1,6 +1,6 @@ ### pullAtValue -This method is like pull except that it accepts an array of values to filter out before Mutating and pulling all the values from the original array. Which then returns an array of removed elements. +Mutates the original array to filter out the values specified. Returns the removed elements. Use `Array.filter()` and `Array.includes()` to pull out the values that are not needed. Use `Array.length = 0` to mutate the passed in array by resetting it's length to zero and `Array.push()` to re-populate it with only the pulled values. @@ -8,20 +8,17 @@ Use `Array.push()` to keep track of pulled values ```js const pullAtValue = (arr, pullArr) => { - let removed = []; - let pushToRemove = arr.forEach((v, i) => pullArr.includes(v) ? removed.push(v) : v) - let mutateTo = arr.filter((v, i) => !pullArr.includes(v)) + let removed = [], + pushToRemove = arr.forEach((v, i) => pullArr.includes(v) ? removed.push(v) : v), + mutateTo = arr.filter((v, i) => !pullArr.includes(v)); arr.length = 0; mutateTo.forEach(v => arr.push(v)); return removed; } - +/* let myArray = ['a', 'b', 'c', 'd']; let pulled = pullAtValue(myArray, ['b', 'd']); - -// let myArray = ['a', 'b', 'c', 'd']; -// let pulled = pullAtValue(myArray, ['b', 'd']); - -// console.log(myArray); -> [ 'a', 'c' ] -// console.log(pulled); -> [ 'b', 'd' ] -``` \ No newline at end of file +console.log(myArray); -> [ 'a', 'c' ] +console.log(pulled); -> [ 'b', 'd' ] +*/ +```