Nodejs String Format format()

Method Source Code

String.prototype.format = function() {
    var args = arguments;
    return this.replace(/\{(\d+)\}/g, function (m, n) { return args[n]; });
};

Related

1. format( formatString)

   Date.prototype.format = function ( formatString) {
     var months = new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec");
     var yyyy = this.getFullYear();
     var yy = yyyy.toString().substring(2);
     var m = this.getMonth();
     var mm = m < 10 ? "0" + m : m;
     var mmm = months[m];
     var d = this.getDate();
     var dd = d < 10 ? "0" + d : d;
   ...
   

2. format()

   String.format = function() {
     var s = arguments[0];
     for (var i = 0; i < arguments.length - 1; i++) {       
       var reg = new RegExp("\\{" + i + "\\}", "gm");             
       s = s.replace(reg, arguments[i + 1]);
     return s;
   

3. format()

   String.prototype.format=function(){
     var a=arguments;
     return this.replace(/\{(\d+)\}/g,function(b,c){return a[c]})
   };
   

4. format()

   String.prototype.format = function() {
     a = this;
     for (k in arguments) {
       a = a.replace("{" + k + "}", arguments[k]);
     return a;
   };
   

5. format()

   String.prototype.format = function() {
     var args = arguments;
     return this.replace(/{(\d{1})}/g, function() {
       return new String(args[arguments[1]]);
     });
   };
   

6. format()

   String.prototype.format=function(){
     if(0==arguments.length)
        return this;
     var t=arguments;
     return this.replace(/\{(\d+)\}/g,function(r,n){
        return void 0===t[n]?"{"+n+"}":t[n]})
   };