Nodejs String Format format()

Method Source Code

/**/*  w  w w  .java2s.  c om*/
 * Beginnings of PEP 3101-ish string formatting.
 * <http://www.python.org/dev/peps/pep-3101/>
 */
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));
        s = re.lastIndex;
        sb.push(arguments[parseInt(match[1], 10)]);
    }
    sb.push(this.slice(s));
    return sb.join('');
};

Related

1. format()

   'use strict';
   String.prototype.format = function() {
     var content = this;
     for (var i=0; i<arguments.length; i++) {
       var placeholder = '{' + i + '}';
       content = content.replace(placeholder, arguments[i]);
     return content;
   };
   ...
   

2. format()

   var width = 584
   var height = 329
   String.prototype.format = function() {
     var formatted = this;
     for (var i = 0; i < arguments.length; i++) {
       var regexp = new RegExp('\\{'+i+'\\}', 'gi');
       formatted = formatted.replace(regexp, arguments[i]);
     return formatted;
   ...
   

3. format()

   var applicationID = '62B33EBF';
   var namespace = 'urn:x-cast:com.google.cast.sample.helloworld';
   var session = null;
   function actualizarTiempo() {
     d = new Date();
     horas = d.getHours() < 10?"0{0}".format(d.getHours()):d.getHours();
     minutos = d.getMinutes() < 10?"0{0}".format(d.getMinutes()):d.getMinutes();
     return "Actualizado a las {0}:{1}".format(horas, minutos);
   String.prototype.format = function() {
     var formatted = this;
     for (var i = 0; i < arguments.length; i++) {
       var regexp = new RegExp('\\{'+i+'\\}', 'gi');
       formatted = formatted.replace(regexp, arguments[i]);
     return formatted;
   };
   

4. format()

   function roundNumber(rnum, rlength) { 
     var newnumber = Math.round(rnum*Math.pow(10,rlength))/Math.pow(10,rlength);
     return parseFloat(newnumber); 
   String.prototype.format = function() {
     var args = arguments;
     return this.replace(/{(\d+)}/g, function(match, number) {
       return typeof args[number] != 'undefined' ? args[number] : match;
     });
   ...
   

5. 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();
   ...
   

6. 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;
   };
   

7. 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;
     });
   };
   

8. 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 () {
   ...
   

9. format()

   String.prototype.format = function() {
       var args = Array.prototype.slice.call(arguments),
           format = this,
           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];
   ...