I have a case where I want to insert two commas after every two digits instead of the last three digits I want to add one comma. The result will look like this ( 34,34,54,388 ). Could someone please help me with how to resolve this issue?
Code
export const newPriceFormatConverter = ([...x]) => {
let i = 2,
subStrings = []
while (x.length) {
subStrings.push(x.splice(0, i).join(''))
i+=2
}
return subStrings.join(',')
}
You could replace with positive lookahead of wanted groups.
const
string = '343434434544',
result = string.replace(/.(?=(..)*...$)/g, '$&,');
console.log(result);
const setComma = (arr) => {
let result = ''
for (let i = 0; i < arr.length; i++) {
if ((i + 1) % 2 === 0 && i < arr.length - 2) {
result = result + arr[i] + ','
} else {
result = result + arr[i]
}
}
return result
}
console.log(setComma([...str]))
Assuming that you want to convert integer / integer as string.
function convert(front)
{
var result="";
front=front.toString().split("");
var end=front.splice(-3);
while(front.length>0)
{
result+=`${front.splice(0,2).join("")},`;
}
result=`${result}${end.join("")}`;
console.log(result);
}
convert(1);
convert(12);
convert(123);
convert(1234);
convert(12345);
convert(123456);
convert(1234567);
convert(12345678);
convert(123456789);
convert(1234567890);You can try something like this:
let str = '34898934984'
console.log(foo([...str]))
function foo(strArray){
const toBeConcatenated = strArray.splice(strArray.length-3,3);
const newStrArray = [...strArray]
for(let i = newStrArray.length; i >1; i--){
if(i%2 == 0) newStrArray.splice(i,0,',')
}
return newStrArray.join("") + toBeConcatenated.join("")
}