如何将阿拉伯数字每三位一逗号分隔，如：15000000转化为15,000,000
"15000000".split("").reverse().join("").replace(/(\d{3})/g, "$1,").split("").reverse().join(""); |
"115000000".split("").reverse().join("").replace(/(\d{3})(?=[^$])/g, "$1,").split("").reverse().join(""); |
var cutStr = function(str) |
{ |
var newStr= new Array(str.length+ parseInt(str.length/3)); |
newStr[newStr.length-1]=str[str.length-1]; |
var currentIndex=str.length-1; |
for(var i = newStr.length-1;i >= 0;i--) |
{ |
if((newStr.length-i)%4==0) |
{ |
newStr[i]=","; |
} |
else |
{ |
newStr[i]=str[currentIndex--]; |
} |
} |
return newStr.join("") |
} |
var num="15000000"; |
console.log(cutStr(num)); |
function cutStr(str){ |
var rmb=‘‘; |
var i2=0; |
for(var i=str.length-1; i>=0; i--){ |
if(i%3==0&&i!=0){ |
rmb+=str[i2]+‘,‘; |
}else{ |
rmb+=str[i2]; |
} |
i2++; |
} |
return rmb; |
} |
console.log(cutStr(num)); |
function cutStr(num) { |
var aaa = num.toString(); |
var arr1 = aaa.split(""); |
var arr2 = []; |
for (var i = 0; i < arr1.length;) { |
for (j = 0; j < 3; j++) { |
arr2.unshift(arr1[i]); |
i++; |
if (j == 2 && i < arr1.length) { |
arr2.unshift(","); |
} |
} |
} |
alert(arr2.join("")); |
} |
cutStr(12345678); |
‘1500000000000‘.replace(/\B(?=(\d{3})+$)/g,‘,‘) |
function formatNumber(value) { |
value = value.toString(); |
if (value.length <= 3) { |
return value; |
} else { |
return formatNumber(value.substr(0, value.length - 3)) + ‘,‘ + value.substr(value.length - 3); |
} |
} |
console.log(formatNumber(12345678)) |
var str = ‘123123211312.333123‘.replace(/(?=(?!^)(?:\d{3})+(?:\.|$))(\d{3}(\.\d+$)?)/g,‘,$1‘); |
console.log(str) |
时间： 2024-10-10 05:39:46