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 concat vs lodash.concat vs. push.apply vs. spread operator vs. push in for loop2 (version: 0)

Comparing performance of: Array.prototype.concat vs Lodash concat vs Array.prototype.push.apply() vs spread operator vs cached for + push

Created: one year ago by: Guest
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HTML Preparation code:
​x
 
1
<script src="
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https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js
3
"></script>
4
​
Script Preparation code:
 
var arr1 = ["what", "is", "this"];
var arr2 = ["this", "is", "a", "test", "hello", "how", "are", "you", "today"];
Tests:

  • Array.prototype.concat

     
    var result = arr1.concat(arr2);

  • Lodash concat

     
    var result = _.concat(arr1, arr2);

  • Array.prototype.push.apply()

     
    Array.prototype.push.apply(arr1, arr2);

  • spread operator

     
    var result = [arr1, ...arr2]

  • cached for + push

     
    for (var i = 0, l = arr2.length; i < l; i++) {
      arr1.push(arr2[i])
    }
Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

  • Test case name Result
    Array.prototype.concat
    Lodash concat
    Array.prototype.push.apply()
    spread operator
    cached for + push

    Fastest: N/A

    Slowest: N/A

Latest run results:

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