Write an algorithm that takes an array and moves all of the zeros to the end, preserving the order of the other elements.?
Arrays in Javascript are important data structures alongside objects. In fact arrays are special types of objects. As a javascript developer, you will use arrays in almost every project that involves grouping/storing data. Arrays are the backbones of javascript data structure, from being able to store any data type to storing arrays inside other arrays i.e multidimensional arrays. We could write about arrays forever and never be out of more words to explain its importance. To keep it short and precise, let's dive directly into this blog's scope. I love practicing algorithms on codewas and I have seen a question on an algorithm that takes an array and moves all of the zeros to the end, preserving the order of the other elements. and here is how I solved it.
function moveZeros(arr) {
//filter out array elements whose values are zero. make sure to use deep comparison operator otherwise false will be refered as a zero, use filter method and this returns a new array of elements with value zero
let newArr = arr.filter ( el => el === 0)
//filter out the elements whose values are not zero
let anotherArr = arr.filter (el => el !== 0)
//merge the two arrays using concat method. and to preserve order make sure the array with values zero be passed after the other array
let finalArr = anotherArr.concat(newArr)
//finally return the final array
return finalArr
this can be achieved in one liner but for explanations purpose, I decided to keep it longer. Thanks for reading this blog post. I would personally recommend codewars for all developers who love solving challenges.