javascript - transforming arrays

Question

how do I use Javascript to turn this list:

var array = ["no yes", "maybe certainly"];

into this one:

var array2 = ["no", "yes", "maybe", "certainly"]

Answer 1

It's better to use regex here, if there are chances of multiple spaces in the array elements.

1. Join the array elements by space
2. Extract non-space characters from string using regular expression

var array = [" no yes ", " maybe certainly "];
var array2 = array.join('').match(/\S+/g);
document.write(array2);
console.log(array2);

• rrowland: Very simple, seems efficient.
• Oleksandr T.: @rrowland not so efficient jsperf.com/match-vs-split-22, as you can see split more faster than match
• Tushar: @Alexander You might want to recheck that again with updated answer. jsperf.com/match-vs-split-22/2
• Oleksandr T.: @Tushar as I see split faster than match jsperf.com/match-vs-split-22, and I can say much faster
• Tushar: @Alexander That is with the old code. I've updated code. Kindly check again on jsperf.com/match-vs-split-22/2

Answer 2

You can join all elements in array, and after split it to array, like so

// var array = ["no yes", "maybe certainly"];
var array = ["no yes ", " maybe certainly"];
var array2 = array.join('').trim().split(/\s+/g);
console.log(array2);

Answer 3

var array = ["no yes", "maybe certainly"]
answer = converfunction(array);
function converfunction(array){
return array.toString().replace(',',' ' ).split(' ')
}

• Tushar: Check with var array = [" no yes ", " maybe certainly "];