regexp_speed_comparison.js
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	• bzimport
	Nov 21 2014, 10:23 PM

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820 B

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regexp_speed_comparison.js
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	var itm = '100,000,000 this is not a number'

	var startTime = new Date()
	for (var i = 0; i < 100000; i++)
	{
	// method 1
	// if (itm.match(/^[+-]?[\d,]+(\.[\d,]*)?([eE][+-]?[\d,]+)?\%?$/) \|\| itm.match(/^[+-]?\.[\d,]+([eE][+-]?[\d,]+)?\%?$/) \|\| itm.match(/^0x[\da-f]+$/i))
	// var three = 2 + 1
	// method 2
	if (itm.match(/^[+-]?[\d,]+(?:\.[\d,]*)?(?:[eE][+-]?[\d,]+)?\%?$/)
	\|\| itm.match(/^[+-]?\.[\d,]+(?:[eE][+-]?[\d,]+)?\%?$/)
	\|\| itm.match(/^0x[\da-f]+$/i))
	var three = 2 + 1
	//method 3
	// if (itm.match(/^[+-]?(?:\d{1,3}(?:\,\d{3}))\.?\d(?:[eE][+-]?\d+(?:\,\d{3}))?[%\u00b0\u00bc\u00bd\u00be]?$/) && !itm.match(/^[eE]/))
	// var three = 2 + 1
	}
	var endTime = new Date()

	//replace "WScript.echo" with "alert" or whatever you need to display the results
	WScript.echo(endTime - startTime)