diff --git a/snippets/takeWhile.md b/snippets/takeWhile.md index 1d66aa5ac..2177e2071 100644 --- a/snippets/takeWhile.md +++ b/snippets/takeWhile.md @@ -3,19 +3,19 @@ title: takeWhile tags: array,intermediate --- -Removes elements in an array until the passed function returns `true`. +Removes elements in an array until the passed function returns `false`. Returns the removed elements. -- Loop through the array, using a `for...of` loop over `Array.prototype.entries()` until the returned value from the function is `true`. +- Loop through the array, using a `for...of` loop over `Array.prototype.entries()` until the returned value from the function is `false`. - Return the removed elements, using `Array.prototype.slice()`. ```js const takeWhile = (arr, func) => { - for (const [i, val] of arr.entries()) if (func(val)) return arr.slice(0, i); + for (const [i, val] of arr.entries()) if (!func(val)) return arr.slice(0, i); return arr; }; ``` ```js -takeWhile([1, 2, 3, 4], n => n >= 3); // [1, 2] +takeWhile([1, 2, 3, 4], n => n < 3); // [1, 2] ```