Run results for: No string building — faster code! Or not?.. Complex data.

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.83 Safari/537.36

Browser: Chrome 85

Operating system: Mac OS X 10.15.5

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
build strings and compare them	62012.6 Ops/sec
compare declarative objects	336851.3 Ops/sec

Script Preparation code:

function translate(arg1, arg2) {
	return ` some text ${arg1.toFixed(2)} other text ${arg2.toLocaleString()}`;
}

const template = [' some text ', ' other text '];
function getTranslatable(arg1, arg2) {
	return {
		template: template,
		args: [arg1, arg2],
	};
}

function isEqual(t1, t2) {
	if (t1.template !== t2.template) {
		return false;
	}
	
	return t1.args.every((arg, index) => arg instanceof Date && t2.args[index] instanceof Date ? 
                                         arg.valueOf() === t2.args[index].valueOf() : 
                                         arg === t2.args[index]
    );
}

results1 = [];
results2 = [];

Tests:

build strings and compare them
const s1 = translate(123.45678, new Date('1995-12-17T03:24:00.012+04:00')); const s2 = translate(123.45678, new Date('1995-12-17T03:24:00.012+04:00')); results1.push(s1 !== s2);
compare declarative objects
const t1 = getTranslatable(123.45678, new Date('1995-12-17T03:24:00.012+04:00')); const t2 = getTranslatable(123.45678, new Date('1995-12-17T03:24:00.012+04:00')); results2.push(isEqual(t1, t2));

Run results for: No string building — faster code! Or not?.. Complex data.

build strings and compare them

compare declarative objects