number.js

这是一个ajax的例子大家好好的看看就是一个鱼眼的效果

if(!dojo._hasResource["tests.number"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["tests.number"] = true;
dojo.provide("tests.number");

dojo.require("dojo.number");

/**
 * Refer to ICU4J's NumberFormatTest.expect(...) 
 */
tests.number.check=function(t,options,sourceInput,expectResult){
	tests.number.checkFormatParseCycle(t, t,options,sourceInput,expectResult,false);
	tests.number.checkParse(t, t,options,expectResult,sourceInput);	
}

/**
 * Perform a single formatting check or a backward check
 * backward check:number1 -(formatted)-> string1 -(parsed)-> number2 -(formated)-> string2
 * then number should == number2; string1 should == string2
 */
tests.number.checkFormatParseCycle=function(t,options,sourceInput,expectResult,
		 backwardCheck/*boolean,indicates whether need a backward chain check,like formate->parse->format*/){	
	if(null != options){
		var pattern = options.pattern;
		var locale = options.locale;
		//TODO: add more fields
	}
	
	//print("\n");
	var str = null==pattern?"default":pattern;
	//print("pattern:" + str + "| locale:" + locale);
	//print("input:" + sourceInput);
	var result = dojo.number.format(sourceInput,options);
	//print("result:" + result);
	if(null != expectResult){
	    t.is(expectResult,result);
	}
	if(backwardCheck){
		var resultParsed = dojo.number.parse(result,options);
		//print("resultParsed:" + resultParsed);		
		if(!tests.number._decimalNumberDiff(sourceInput,resultParsed)){	
		    t.is(sourceInput,resultParsed);
		}		
		var resultParsedReformatted = dojo.number.format(resultParsed,options);
		//print("resultParsedReformatted:" + resultParsedReformatted);
	    if(!tests.number._decimalNumberDiff(result,resultParsedReformatted)){
			t.is(result,resultParsedReformatted);
		}
	}	
}

/**
 * Perform a single parsing check
 */
tests.number.checkParse=function(t,options,sourceInput,expectResult){
	var str = "default";
	if(null != options && null != options.pattern){	
		str = options.pattern;
	}
	//print("input:" + sourceInput);
	var result = dojo.number.parse(sourceInput,options);
	//print("result :" + result);
	if(null != expectResult){
	    t.is(expectResult,result);
	}
}

/**
 * //TODO:Round a given number
 */
tests.number.rounding = function(t,number,maxFractionDigits,expected){
	var pattern="#0.";
	for(var i=0; i<maxFractionDigits; i++){pattern += "#";}
	var result = dojo.number.format(number,{pattern:pattern});
	t.is(expected,result);	
}

/**
 * Run a batch parsing
 */
function runBatchParse(options,dataArray/*array*/,pass/*boolean*/){
	var exception = null;
	var result;
	var i=0;
	var str = (null==options.pattern)?"default":options.pattern;
	
	//print("\n");
	for(; i<dataArray.length; i++){
		try{
			//print("["+i+"]"+"input:"+dataArray[i]);
			result = dojo.number.parse(dataArray[i],options);			
			if(isNaN(result)){
				throw "\"" + dataArray[i] + "\" is parsed to NaN with pattern " + str;
			}
			//print("["+i+"]"+"output:"+result);	
		}catch(e){
			exception = e;
			break;
		}
	}
		
	if(!pass && (exception == null)) {
		throw "runBatchParse() - stric parse failed, no exception when parsing illegal data"; 
	}else if(exception != null){
		if(!pass && i == 0){
			//strict parsing should fail for all the dataArray elements as expected
			//pass condition for strict parsing
			return;
		}
		throw "runBatchParse() failed: " + exception;		
	}
}

/**
 * Check whether the given two numbers differ under the decimal bound
 * 
 */
tests.number._decimalNumberDiff = function(num1,num2){
	//TODO: should be more accurate when dojo.number finish rounding in the future
	var diffBound = 1e-3;
	var diff = num1 - num2;
	//print("Math.abs(diff) " + Math.abs(diff));
	if(Math.abs(diff) < diffBound ){
		return true;
	}else if(isNaN(Math.abs(diff))){	
		var s = num1.toString().split(num2);
		s[1] = s[1].replace(",","0");
		s[1] = s[1].replace('\u066b','0');
		return (new Number(s[1])< diffBound);
	}
	return false;	
}

tests.register("tests.number", 
	[
		{
			// Test formatting and parsing of currencies in various locales pre-built in dojo.cldr
			// NOTE: we can't set djConfig.extraLocale before bootstrapping unit tests, so directly
			// load resources here for specific locales:

			name: "number",
			setUp: function(){
				var partLocaleList = ["en-us", "fr-fr", "de-de"];

				for(var i = 0 ; i < partLocaleList.length; i ++){
					dojo.requireLocalization("dojo.cldr","number",partLocaleList[i], "zh-cn,zh,ko-kr,pt,en-us,en-gb,de,ja,ja-jp,en,ROOT,en-au,fr,es,ko,zh-tw,it,es-es,de-de");
				}
			},
			runTest: function(t){
			}
		},
		{
			name: "format", // old tests
			runTest: function(t){

	t.is("0123", dojo.number.format(123, {pattern: "0000"}));
	t.is("-12,34,567.890", dojo.number.format(-1234567.89, {pattern: "#,##,##0.000##"}));
	t.is("-12,34,567.89012", dojo.number.format(-1234567.890123, {pattern: "#,##,##0.000##"}));
	t.is("(1,234,567.89012)", dojo.number.format(-1234567.890123, {pattern: "#,##0.000##;(#,##0.000##)"}));
	t.is("(1,234,567.89012)", dojo.number.format(-1234567.890123, {pattern: "#,##0.000##;(#)"}));
	t.is("50.1%", dojo.number.format(0.501, {pattern: "#0.#%"}));
	t.is("98", dojo.number.format(1998, {pattern: "00"}));
	t.is("01998", dojo.number.format(1998, {pattern: "00000"}));
	t.is("0.13", dojo.number.format(0.125, {pattern: "0.##"})); //NOTE: expects round_half_up, not round_half_even
	t.is("0.1250", dojo.number.format(0.125, {pattern: "0.0000"}));
	t.is("0.1", dojo.number.format(0.100004, {pattern: "0.####"}));

	t.is("-12", dojo.number.format(-12.3, {places:0, locale: "en-us"}));
	t.is("-1,234,567.89", dojo.number.format(-1234567.89, {locale: "en-us"}));
//	t.is("-12,34,567.89", dojo.number.format(-1234567.89, {locale: "en-in"}));
	t.is("-1,234,568", dojo.number.format(-1234567.89, {places:0, locale: "en-us"}));
//	t.is("-12,34,568", dojo.number.format(-1234567.89, {places:0, locale: "en-in"}));
	t.is("-1\xa0000,10", dojo.number.format(-1000.1, {places:2, locale: "fr-fr"}));
	t.is("-1,000.10", dojo.number.format(-1000.1, {places:2, locale: "en-us"}));
	t.is("-1\xa0000,10", dojo.number.format(-1000.1, {places:2, locale: "fr-fr"}));
	t.is("-1.234,56", dojo.number.format(-1234.56, {places:2, locale: "de-de"}));
	t.is("-1,000.10", dojo.number.format(-1000.1, {places:2, locale: "en-us"}));
	t.is("123.46%", dojo.number.format(1.23456, {places:2, locale: "en-us", type: "percent"}));

	//rounding
	t.is("-1,234,568", dojo.number.format(-1234567.89, {places:0, locale: "en-us"}));
//	t.is("-12,34,568", dojo.number.format(-1234567.89, {places:0, locale: "en-in"}));
	t.is("-1,000.11", dojo.number.format(-1000.114, {places:2, locale: "en-us"}));
	t.is("-1,000.11", dojo.number.format(-1000.115, {places:2, locale: "en-us"}));
	t.is("-1,000.12", dojo.number.format(-1000.116, {places:2, locale: "en-us"}));
	t.is("-0.00", dojo.number.format(-0.0001, {places:2, locale: "en-us"}));
	t.is("0.00", dojo.number.format(0, {places:2, locale: "en-us"}));

	//change decimal places
	t.is("-1\xa0000,100", dojo.number.format(-1000.1, {places:3, locale: "fr-fr"}));
	t.is("-1,000.100", dojo.number.format(-1000.1, {places:3, locale: "en-us"}));
			}
		},
		{
			name: "parse", // old tests
			runTest: function(t){
	t.is(1000, dojo.number.parse("1000", {locale: "en-us"}));
	t.is(1000.123, dojo.number.parse("1000.123", {locale: "en-us"}));
	t.is(1000, dojo.number.parse("1,000", {locale: "en-us"}));
	t.is(-1000, dojo.number.parse("-1000", {locale: "en-us"}));
	t.is(-1000.123, dojo.number.parse("-1000.123", {locale: "en-us"}));
	t.is(-1234567.89, dojo.number.parse("-1,234,567.89", {locale: "en-us"}));
	t.is(-1234567.89, dojo.number.parse("-1 234 567,89", {locale: "fr-fr"}));
	t.t(isNaN(dojo.number.parse("-1 234 567,89", {locale: "en-us"})));

	t.t(isNaN(dojo.number.parse("10,00", {locale: "en-us"})));
	t.t(isNaN(dojo.number.parse("1000.1", {locale: "fr-fr"})));

	t.t(isNaN(dojo.number.parse("")));
	t.t(isNaN(dojo.number.parse("abcd")));

	//test whitespace
//	t.is(-1234567, dojo.number.parse("  -1,234,567  ", {locale: "en-us"}));

//	t.t(dojo.number.parse("9.1093826E-31"));
	t.is(0.501, dojo.number.parse("50.1%", {pattern: "#0.#%"}));

	t.is(123.4, dojo.number.parse("123.4", {pattern: "#0.#"}));
	t.is(-123.4, dojo.number.parse("-123.4", {pattern: "#0.#"}));
	t.is(123.4, dojo.number.parse("123.4", {pattern: "#0.#;(#0.#)"}));
	t.is(-123.4, dojo.number.parse("(123.4)", {pattern: "#0.#;(#0.#)"}));

	t.is(null, dojo.number.format("abcd", {pattern: "0000"}));
	
	t.is(123, dojo.number.parse("123", {places:0}));
	t.is(123, dojo.number.parse("123", {places:'0'}));
	t.is(123.4, dojo.number.parse("123.4", {places:1}));
	t.is(123.45, dojo.number.parse("123.45", {places:'1,3'}));
	t.is(123.45, dojo.number.parse("123.45", {places:'0,2'}));
			}
		},
		{
			name: "format_icu4j3_6",
			runTest: function(t){

/*************************************************************************************************
 * Evan:The following test cases are referred from ICU4J 3.6 (NumberFormatTest etc.) 
 * see http://icu.sourceforge.net/download/3.6.html#ICU4J
 *************************************************************************************************/


/**
 * In ICU4J, testing logic for NumberFormat.format() is seperated into 
 * differernt single tese cases. So part of these logic are 
 * collected together in this single method.
 * 
 * !!Failed cases are as follows:
 * 1.1234567890987654321234567890987654321 should be formatted as 
 *   1,234,567,890,987,654,321,234,567,890,987,654,321 with all the default parameters,
 *   but got 1.234 instead, may due to the unimplemeted exponent.
 * 2.\u00a4 and ' are not replaced
 * 	 with pattern "'*&'' '\u00a4' ''&*' #,##0.00"
 *   1.0 should be formatted to "*&' Re. '&* 1.00",but got "'*&'' '\u00a4' ''&*' 1.00" instead
 *   etc.   
 * 		
 */
	//print("test_number_format_icu4j3_6() start..............");
	/* !!Failed case, 1.234 returned instead
	//refer to ICU4J's NumberFormatTest.TestCoverage() 
	var bigNum = 1234567890987654321234567890987654321;
	var expectResult = "1,234,567,890,987,654,321,234,567,890,987,654,321";
	tests.number.checkFormatParseCycle(t, null,bigNum,expectResult,false);
	*/	
	
	//in icu4j should throw out an exception when formatting a string,
	//but it seems dojo.number.format can deal with strings
	//return 123,456,789
	dojo.number.format("123456789");
	
	//!!Failed case, \u00a4 and ' are not replaced
	/*
	var options = {pattern:"'*&'' '\u00a4' ''&*' #,##0.00",locale:"en-us"};
	tests.number.check(t, options,1.0, "*&' Re. '&* 1.00");
	tests.number.check(t, options,-2.0, "-*&' Rs. '&* 2.00");	

	options = {pattern:"#,##0.00 '*&'' '\u00a4' ''&*'",locale:"en-us"};
	tests.number.check(t, options,1.0,"1.00 *&' Re. '&*");
	tests.number.check(t, options,-2.0,"-2.00 *&' Rs. '&*");
	*/
	//print("test_number_format_icu4j3_6() end..............\n");
			}
		},
		{
			name: "format_patterns",
			runTest: function(t){

/**
 * Refer to ICU4J's NumberFormatTest.TestPatterns() which now only coveres us locale	
 */
	//print("test_number_format_Patterns() start..............");
	var patterns = (["#0.#", "#0.", "#.0", "#"]);
	var patternsLength = patterns.length;    
	var num = (["0","0", "0.0", "0"]);
	var options;
	//icu4j result seems doesn't work as:
	//var num = (["0","0.", ".0", "0"]);      
	for (var i=0; i<patternsLength; ++i)
	{	
		options = {pattern:patterns[i]};
		tests.number.checkFormatParseCycle(t, options,0,num[i],false);       
	}
	
	//!!Failed case
	//In ICU4J:
	//        unquoted special characters in the suffix are illegal
	//        so "000.000|###" is illegal; "000.000'|###'" is legal
	//dojo.number.format:
	//        when formatting 1.2 with illegal pattern "000.000|###"
	//		  no exception was thrown but got "001.200|###" instead.
	
	/*
	patterns = (["000.000|###","000.000'|###'"]);
	var exception = false;
	var result;
	for(var i = 0; i < patterns.length; i ++){
		try{
			//"001.200'|###'" is return for "000.000'|###'"
			//"001.200|###" is return for "000.000|###"
			result = dojo.number.format(1.2,{pattern:patterns[i]});
			print("["+i+"] 1.2 is formatted to " + result + " with pattern " + patterns[i]);
		}catch(e){
			exception = true;
		}
		if(exception && i==1){