Merge branch 'master' of https://github.com/Chalarangelo/30-seconds-of-code

snippets/pullAtValue.md

@@ -0,0 +1,24 @@
+### pullAtValue
+
+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.
+Use `Array.push()` to keep track of pulled values 
+
+```js
+const pullAtValue = (arr, pullArr) => {
+  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']);
+console.log(myArray); -> [ 'a', 'c' ]
+console.log(pulled); -> [ 'b', 'd' ]
+*/
+```

tag_database

@@ -74,6 +74,7 @@ pipe:function
 powerset:math
 promisify:function
 pull:array
+pullAtValue:array
 pullAll:array
 pullAtIndex:array
 randomIntegerInRange:math