Interesting test for unique string processing

[Arlen Beiler]

Here is an interesting test to see which method of unique strings is faster in Javascript. Paste it into your browser console in a new tab and see what happens.

for (let r = 0; r < 100; r++) {

let test = Math.random().toExponential(10);

let count = 1000;

let test1 = {};

let test2 = [];

console.time("test 1");

for (let i = 0; i < count; i++) {

let item = test + "" + i;

if (!test1[item]) test1[item] = true;

}

console.timeEnd("test 1");

console.time("test 2");

for (let i = 0; i < count; i++) {

let item = test + "" + i;

if (test2.indexOf(item) === -1) test2.push(item);

}

console.timeEnd("test 2");

}

[TW Tones]

Hi,

If you are proposing this be used in the core or such perhaps it would be better to raise this in the developer discussion's. Since as a rule Javascript is not native in User interface but provides modules and plugins.

https://github.com/Jermolene/TiddlyWiki5/discussions

tones

[PMario]

Hi Arlen,

It would be interesting, what you try to prove here?

Accessing big arrays with a loop is probably always slower than accessing an object element by name. The biggest difference probably is memory consumption.

-m