js amount formatting and round-trip conversion example_javascript skills

Let’s look at the example directly:

Copy the code The code is as follows:

function fmoney(s, n) //s: the float number passed in, n: the number of decimal points you want to return
{
n = n > 0 && n <= 20 ? n : 2;
s = parseFloat((s "").replace(/[^d.-]/g, "")).toFixed(n) "";
var l = s.split(".")[0].split("" ).reverse(),
r = s.split(".")[1];
t = "";
for(i = 0; i < l.length; i )
{
t = l[i] ((i 1) % 3 == 0 && (i 1) != l.length ? "," : "");
}
return t .split("").reverse().join("") "." r;
}

The function of this function is to

call: fmoney(" 12345.675910", 3), returns 12,345.676

Copy code The code is as follows:

function rmoney(s )
{
return parseFloat(s.replace(/[^d.-]/g, ""));
}

Format the amount returned above The number is returned as float type.

Copy code The code is as follows:

rmoney(12,345.676) //The return result is: 12345.676