JS 는 어떻게 숫자 유형 을 쉼표 하나 없 는 금전 형식 으로 바 꿉 니까?

 
  
 
  <br> 
  <br>window.onload = function(){ 
  <br>//          
  <br>var testFun = function( callback, str ){ 
  <br>var tipElem = document.createElement( 'div' ), 
  <br>startTime, 
  <br>duration = 0; 
  <br>for( var j = 5; j > 0; j-- ){ 
  <br>startTime = +new Date(); 
  <br>for( var i = 10000; i > 0; i-- ){ 
  <br>callback(); 
  <br>} 
  <br>duration = ((+new Date()) - startTime) + duration; 
  <br>} 
  <br>duration = (duration / 5).toFixed(0); 
  <br>tipElem.innerHTML = str + '   ：' + duration + ' ms'; 
  <br>document.body.appendChild( tipElem ); 
  <br>}; 
  <br> 
  <br>var str = '3345687687876789123'; 
  <br> 
  <br>var cuter1 = function( str ){//   
  <br>var len = str.length, 
  <br>lastIndex, 
  <br>arr = []; 
  <br>while( len > 0 ){ 
  <br>lastIndex = len; 
  <br>len -= 3; 
  <br>arr.unshift( str.substring(len, lastIndex) ); 
  <br>} 
  <br>return arr.join(','); 
  <br>}; 
  <br> 
  <br> 
  <br>var cuter2 = function( str ){//abcd 
  <br>return str.replace( /\B(?=(?:\d{3})+$)/g, ',' ); 
  <br>}; 
  <br> 
  <br>var cuter3 = function( str ){//   
  <br>return str.replace(/(.*)(\d{3})$/,function(){ 
  <br>if(arguments[1]&& arguments[2]){ 
  <br>return arguments[1].replace(/(.*)(\d{3})$/,arguments.callee)+","+arguments[2]; 
  <br>} else { 
  <br>return arguments[0]; 
  <br>} 
  <br>}); 
  <br>}; 
  <br> 
  <br> 
  <br>var cuter4 = function( str ){//Alucelx 
  <br>return str.split('').reverse().join('').replace(/(\d{3})/g, '$1,').split('').reverse().join(''); 
  <br>}; 
  <br> 
  <br>var cuter5 = function( str ){//     
  <br>var ret = []; 
  <br>while(str){ 
  <br>str = str.replace(/\d{1,3}$/g,function(a){ 
  <br>ret.unshift(a) 
  <br>return "" 
  <br>}); 
  <br>} 
  <br>return ret.join(","); 
  <br>}; 
  <br>var cuter6 = function( str ){//     
  <br>var n = str.length % 3; 
  <br>if(n){ 
  <br>return str.slice(0,n) + str.slice(n).replace(/(\d{3})/g,',$1') 
  <br>}else{ 
  <br>return str.replace(/(\d{3})/g,',$1').slice(1) 
  <br>} 
  <br>}; 
  <br>var cuter7 = function(str){//     
  <br>var ret = "" 
  <br>for(var i = 0, n = str.length, m = n %3 - 1; i < n; i++){ 
  <br>ret += str.charAt(i) 
  <br>if( i % 3 === m ){ 
  <br>ret += "," 
  <br>} 
  <br>} 
  <br>var e = ret.length - 1 
  <br>return ret.charAt(e) == "," ? ret.slice(0,e) : ret 
  <br>} 
  <br>var cuter8 = function(str){//[[valueOf]] 
  <br>var s2 = [].slice.call(str); 
  <br>for(var i=s2.length-3; i>0;i-=3){ 
  <br>s2.splice(i, 0 ,',' ); 
  <br>} 
  <br>return s2.join("") 
  <br>} 
  <br>var cuter9 = function(str){//   
  <br>var newStr= new Array(str.length+ parseInt(str.length/3)); 
  <br>newStr[newStr.length-1]=str[str.length-1]; 
  <br>var currentIndex=str.length-1; 
  <br>for(var i = newStr.length-1;i >= 0;i--) { 
  <br>if((newStr.length-i)%4==0) 
  <br>{ 
  <br>newStr[i]=","; 
  <br>}else{ 
  <br>newStr[i]=str[currentIndex--]; 
  <br>} 
  <br>} 
  <br>return newStr.join("") 
  <br>} 
  <br>var cuter10 = function(str){//Rekey 
  <br>var len = str.length, str2 = '', max = Math.floor(len / 3); 
  <br>for(var i = 0 ; i < max ; i++){ 
  <br>var s = str.slice(len - 3, len); 
  <br>str = str.substr(0, len - 3); 
  <br>str2 = (',' + s) + str2; 
  <br>len = str.length; 
  <br>} 
  <br>str += str2; 
  <br>return str 
  <br>} 
  <br>//        
  <br>testFun(function(){ 
  <br>cuter1(str); 
  <br>}, '   ' ); 
  <br> 
  <br> 
  <br>testFun(function(){ 
  <br>cuter2(str); 
  <br>}, '   ' ); 
  <br> 
  <br> 
  <br>testFun(function(){ 
  <br>cuter3(str); 
  <br>}, '   ' ); 
  <br> 
  <br> 
  <br>testFun(function(){ 
  <br>cuter4(str); 
  <br>}, '   ' ); 
  <br> 
  <br> 
  <br>testFun(function(){ 
  <br>cuter5(str); 
  <br>}, '   ' ); 
  <br>testFun(function(){ 
  <br>cuter6(str); 
  <br>}, '   ' ); 
  <br>testFun(function(){ 
  <br>cuter7(str); 
  <br>}, '   ' ); 
  <br>testFun(function(){ 
  <br>cuter8(str); 
  <br>}, '   ' ); 
  <br>testFun(function(){ 
  <br>cuter9(str); 
  <br>}, '   ' ); 
  <br>testFun(function(){ 
  <br>cuter10(str); 
  <br>}, '   ' ); 
  <br>} 
  <br> 
  
 
 

 
  
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