Benchmark: isNumber: regex vs isNaN vs string comparison (version: 1)

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

window.case1 = new Proxy({}, {
  get(t, p, r) {
    if (typeof p === 'string' && !isNaN(p)) {
      return +p
    }
    else {
      return Reflect.get(t, p, r)
    }
  }
});
window.case2 = new Proxy({}, {
  get(t, p, r) {
    if (/^\d+$/.test(p)) {
      return +p
    }
    else {
      return Reflect.get(t, p, r)
    }
  }
});
window.case3 = new Proxy({}, {
  get(t, p, r) {
    if (p >= '0' && p <= '9') {
      return +p
    }
    else {
      return Reflect.get(t, p, r)
    }
  }
});
window.gabage1 = 0;
window.gabage2 = 0;
window.gabage3 = 0;

Tests:

isNaN
gabage1 =+ case1[_.random(0, 1e3, false)];
regex
gabage2 =+ case2[_.random(0, 1e3, false)];
string comparison
gabage3 =+ case3[_.random(0, 1e3, false)];

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
isNaN
regex
string comparison

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.45 Safari/537.36

Browser/OS: Chrome 96 on Windows

View result in a separate tab

Test name	Executions per second
isNaN	646124.8 Ops/sec
regex	817190.8 Ops/sec
string comparison	749253.1 Ops/sec

isNumber: regex vs isNaN vs string comparison (version: 1) (version: 0)

Comparing performance of: isNaN vs regex vs string comparison

Created: 2 years ago by: Guest

Jump to the latest result

isNaN

regex

string comparison

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A