Several ways to add thousand characters to formatted numbers in node.js_node.js

Separate every three characters with commas

Regular method:

Copy code The code is as follows:

"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 str = '123123211312.333123'.replace(/(?=(?!^)(?:d{3}) (?:.|$))(d{3}(.d $)?)/ g,',$1');
console.log(str)

'1500000000000'.replace(/B(?=(d{3}) $)/g,',')

Loop search method

Copy code The code is as follows:

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);
}
}

toLocaleString function:

Copy code The code is as follows:

15000000..toLocaleString();