Sort array of strings using another array of strings in javascript

Question

I want to sort array1 using array2.

var array1 = ["cat","dog","mouse","elephant","ant","cow","goat","hen"];
var array2 = ["mouse","cow","goat"];

The result should look like
var another_array = ["mouse","cow","goat", "bird"--- then rest of the values in array1]

Answer 1

Just taken from object with the order the value or Infinity for the delta.

 var array1 = ["cat", "dog", "mouse", "elephant", "ant", "cow", "goat", "hen"], array2 = ["mouse", "cow", "goat"], order = array2.reduce((r, k, i) => (r[k] = i + 1, r), {}); array1.sort((a, b) => (order[a] || Infinity) - (order[b] || Infinity)); console.log(array1);

Answer 2

Sounds like you're looking for concatenation and filtering:

>>> array2.concat(array1.filter(i => !array2.includes(i)))
    ["mouse", "cow", "goat", "cat", "dog", "elephant", "ant", "hen"]

Answer 3

Something like this - concatenation and a filter

 const array1 = ["cat","dog","mouse","elephant","ant","cow","goat","hen"]; const array2 = ["mouse","cow","goat"]; const anotherArray = [...array2, "bird", ...array1.filter(item =>.array2.includes(item))] console.log(anotherArray)

Answer 4

Use concat function

 var hege = ["Cecilie", "Lone"]; var stale = ["Emil", "Tobias", "Linus"]; var children = hege.concat(stale); console.log(children)