Run results for: Encode vs Blob

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:129.0) Gecko/20100101 Firefox/129.0

Browser: Firefox 129

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

Blob

4K/s

TextEncoder

604/s

View exact numbers

Test name	Executions per second
✓ Blob	3,611 Ops/sec
TextEncoder	604 Ops/sec

Script Preparation code:

iterations = 1000;
function randomStringGen(n) {
    let strings = [];
    for (let i = 0; i < n; i++) {
      let s = Math.random().toString(36).substring(2, 15) + Math.random().toString(36).substring(2, 15);
      strings[i] = s;
    }
    return strings;
}
var randomStrings = randomStringGen(iterations);
var encoder = new TextEncoder();

Tests:

Blob
var j = 0; for (let i = 0; i < iterations; i++) { var str = randomStrings[i % iterations]; new TextEncoder().encode(str).length }
TextEncoder
var j = 0; for (let i = 0; i < iterations; i++) { var str = randomStrings[i % iterations]; new Blob([str]).size }