Run results for: nums unshorter

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/78.0

Browser: Firefox 78

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
ations favorite	109021.8 Ops/sec
Flo first try	108919.3 Ops/sec
ations extends Flo	40002.8 Ops/sec
ations tried something	134556.4 Ops/sec
Flo favorite	77750.6 Ops/sec

Script Preparation code:

String.prototype.fn1 = function() {
	const matched = this.match(/^((?:-|\+)?(?:\d+(?:\.\d+)?(?:e\d+)?|\.\d+(?:e\d+)?))([yzeptgmk]?)$/i)
	return matched ? matched[1] * { 0: 1, k: 1e3, m: 1e6, g: 1e9, t: 1e12, p: 1e15, e: 1e18, z: 1e21, y: 1e24 }[matched[2] || 0] : NaN
}

String.prototype.fn2 = function() {
	const reg = this.match(/^((?:-|\+)?(?:\d+(?:\.\d+)?(?:e\d+)?|\.\d+(?:e\d+)?))([yzeptgmk]?)$/i)
	return reg && (reg[1] * { k: 1e3, m: 1e6, g: 1e9, t: 1e12, p: 1e15, e: 1e18, z: 1e21, y: 1e24 }[reg[2]] || Number(reg[1]))
}

String.prototype.fn3 = function() {
	const [_, a, b] = this.match(/^((?:-|\+)?(?:\d+(?:\.\d+)?(?:e\d+)?|\.\d+(?:e\d+)?))([yzeptgmk]?)$/i) || []
	return a ? a * { 0: 1, k: 1e3, m: 1e6, g: 1e9, t: 1e12, p: 1e15, e: 1e18, z: 1e21, y: 1e24 }[b || 0] : NaN
}

String.prototype.fn4 = function() {
	const matched = this.match(/^((?:-|\+)?(?:\d+(?:\.\d+)?(?:e\d+)?|\.\d+(?:e\d+)?))([yzeptgmk]?)$/i)
	return matched ? matched[1] * ({ k: 1e3, m: 1e6, g: 1e9, t: 1e12, p: 1e15, e: 1e18, z: 1e21, y: 1e24 }[matched[2]] || 1) : NaN
}

String.prototype.fn5 = function() {
	const [_, num, key] = this.match(/^(\d+(?:\.\d+)?|\.\d+)([kmgtpezy]?)$/i) || []
	return num * { '': 1, k: 1e3, m: 1e6, g: 1e9, t: 1e12, p: 1e15, e: 1e18, z: 1e21, y: 1e24 }[key]
}

Tests:

ations favorite
''.fn1() "abc".fn1() "1kk".fn1() "1.7kk".fn1() "1e3kk".fn1() "1.7e3kk".fn1() "1e3".fn1() "1e3k".fn1() "1.7e3k".fn1()
Flo first try
''.fn2() "abc".fn2() "1kk".fn2() "1.7kk".fn2() "1e3kk".fn2() "1.7e3kk".fn2() "1e3".fn2() "1e3k".fn2() "1.7e3k".fn2()
ations extends Flo
''.fn3() "abc".fn3() "1kk".fn3() "1.7kk".fn3() "1e3kk".fn3() "1.7e3kk".fn3() "1e3".fn3() "1e3k".fn3() "1.7e3k".fn3()
ations tried something
''.fn4() "abc".fn4() "1kk".fn4() "1.7kk".fn4() "1e3kk".fn4() "1.7e3kk".fn4() "1e3".fn4() "1e3k".fn4() "1.7e3k".fn4()
Flo favorite
''.fn5() "abc".fn5() "1kk".fn5() "1.7kk".fn5() "1e3kk".fn5() "1.7e3kk".fn5() "1e3".fn5() "1e3k".fn5() "1.7e3k".fn5()

Run results for: nums unshorter

ations favorite

Flo first try

ations extends Flo

ations tried something

Flo favorite