Nodejs String Format format(options)

Method Source Code

String.prototype.format = function(options) {
   var option,/* ww w  .j  a v  a2s  .c om*/
      regex,
      formatted = this;
   for (option in options) {
      regex = new RegExp('#{' + option + '}', 'g');
      formatted = formatted.replace(regex, options[option]);
   }

   return formatted;
};


console.log('Hello, there! Are you #{name}?'.format({
   name: 'John'
}));
console.log('My name is #{name} and I am #{age}-years-old'.format({
   name: 'John',
   age: 13
}));

Related

1. format(obj)

   String.prototype.format = function(obj){
       var placeHolders = this.match(/#{\w+}/g),
           prop,
           result = this;
       for (var i = 0; i < placeHolders.length; i++) {
           prop = placeHolders[i].substring(2, placeHolders[i].length - 1);
           if (obj[prop]){
               result = result.replace(placeHolders[i], obj[prop]);
       return result;
   };
   var options = {name: 'John'};
   console.log('Hello, there! Are you #{name}?'.format(options));
   var options2 = {name: 'John', age: 13};
   console.log('My name is #{name} and I am #{age}-years-old'.format(options2));
   

2. format(obj)

   String.prototype.format = function(obj) {
     var args = arguments;
     var str = this;
     return str.replace(/\{[\w\d_-]+\}/g, function(part) {
       part = part.slice(1, -1);
       var index = parseInt(part, 10);
       if (isNaN(index)) {
         return obj[part];
       } else {
   ...
   

3. format(object)

   String.prototype.format = function (object) {
       var self=this;
       for (var item in object) {
           var replaceItem = object[item],
               regExp = new RegExp('#{' + item + '}');
           self=self.replace(regExp, replaceItem);
       return self;
   var object = {
       name: 'John',
       age: 15,
       gender: 'male'
   };
   var str = 'My name is #{name}, I am #{age}-years-old and my gender is #{gender}'.format(object);
   console.log('TASK 1:\n'+str);
   

4. format(options)

   function solve(args) {
   String.prototype.format = function(options) {
       var prop,
           result = this;
       for (prop in options) {
           result = result.replace(new RegExp('#{' + prop + '}', 'g'), options[prop]);
       return result;
   };
   ...
   

5. format(options)

   String.prototype.format = function(options) {
     var option,
       toReplace,
       str = this;
     for (option in options) {
       toReplace = new RegExp('#{' + option + '}');
       str = str.replace(toReplace, options[option]);
     console.log(str);
   ...
   

6. format(options)

   String.prototype.format = function (options) {
     return this.replace(/(?:#{(\w+)})/g, function ($0, $1) {
       return options[$1];
     });
   };
   var options1 = {name: 'John'};
   console.log('Hello, there! Are you #{name}?'.format(options1));
   var options2 = {name: 'John', age: 13};
   console.log('My name is #{name} and I am #{age}-years-old'.format(options2));
   ...
   

7. format(options)

   String.prototype.format = function(options) {
       var formattedStr = this
           ,option;
       for (option in options ) {
           var placeHolder = new RegExp('#{' + option + '}');
           formattedStr = formattedStr.replace(placeHolder, options[option]);
       return formattedStr;
   };
   ...
   

8. format(options)

   String.prototype.format=function(options) {
       var string = this;
       for (var i in options) {
           var pattern = '#{' + (i) + '\\}';
           var regex = new RegExp(pattern, 'g');
           string = string.replace(regex, options[i]);
       return string;
   var options = {name: 'John'};
   console.log('Hello, there! Are you #{name}?'.format(options));
   var options = {name: 'John', age: 13};
   console.log('My name is #{name} and I am #{age}-years-old'.format(options));
   

9. format(options)

   var jsConsole;
   String.prototype.format = function (options) {
       return this.replace(/(?:#{(\w+)})/g, function ($0, $1) {
           return options[$1];
       });
   };
   var exampleOne = { name: 'John' };
   jsConsole.writeLine('Hello, there! Are you #{name}?'.format(exampleOne));
   var exampleTwo = { name: 'John', age: 13 };
   ...