Nodejs String Format format()

Method Source Code

String.prototype.format = function() {
    var args = Array.prototype.slice.call(arguments),
        format = this,//  ww w. j a v  a2 s .c  o m
        match;
   
    if (args.length === 1 && typeof args[0] === "object") {
        args = args[0];
    }
    
    for (var i = 0; match = /{(\d+|\w+)?}/gm.exec(format); i++) {
        var key = match[1];
        
        format = key ? 
                 format.replace(new RegExp("\\{" + key + "\\}", "gm"), args[key]) :
                 format.replace("{}", args[i]);
    }
    
    return format;
};

Related

1. format()

   var _2PI= Math.PI;
   String.prototype.format = function () {
       var args = arguments;
       return this.replace(/\{(\d+)\}/g, function() {
           return args[arguments[1]];
       });
   };
   function getClone(donor) {
       var clone = $(donor).clone();
   ...
   

2. format()

   String.prototype.format = function()
       var re = /{(\d+)}/g;
       var sb = [];
       var match;
       var s = 0;
       while ((match = re.exec(this)))
           sb.push(this.slice(s, match.index));
   ...
   

3. format()

   String.prototype.format = function() {
     var formatted = this, len = arguments.length, i = 0, regexp = null;
     for(i; i < len; i++) {
       regexp = new RegExp('\\{' + i + '\\}', 'gi');
       formatted = formatted.replace(regexp, arguments[i]);
     return formatted;
   };
   

4. format()

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

5. format()

   function extend(obj, src) {
       for (var key in src) {
           if (src.hasOwnProperty(key)) obj[key] = src[key];
       return obj;
   String.prototype.format = function () {
     var i = 0, args = arguments;
     return this.replace(/{}/g, function () {
   ...
   

6. format()

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

7. format()

   String.prototype.format = String.prototype.f = function() {
       var s = this,
           i = arguments.length;
       while (i--) {
           s = s.replace(new RegExp('\\{' + i + '\\}', 'gm'), arguments[i]);
       return s;
   };
   function selectText() {
   ...
   

8. format()

   String.prototype.format = function () {
      var args = arguments; 
      return this.replace( /\{(\d|\d\d)\}/g, 
      function ( $0 ) {
         var idx = $0.match(/\d+/);
         return args[idx] ? args[idx] : $0 ;
      } );
   "T123{0}T{0}".format("A","B")
   ...
   

9. format()

   String.prototype.format = String.prototype.f = function() {
       var s = this,
           i = arguments.length;
       while (i--) {
           s = s.replace(new RegExp('\\{' + i + '\\}', 'gm'), arguments[i]);
       return s;
   };
   function selectElementText(el) {
   ...