Nodejs String Supplant supplant(o)

Method Source Code

// adapted from http://javascript.crockford.com/remedial.html

// will modify a global object - no need to export anything.

String.prototype.supplant = function (o) {
    return this.replace(
        /\{([^{}]*)\}/g,/*  w w  w.jav a  2s .  com*/
        function (a, b) {
            var r = o[b];
            return typeof r === 'string' || typeof r === 'number' ? r : a;
        }
    );
};

Related

1. supplant(o)

   String.prototype.supplant = function (o) {
     return this.replace(/{([^{}]*)}/g,
       function (a, b) {
           var r = o[b];
           return typeof r === 'string' || typeof r === 'number' ? r : a;
     );
   };
   

2. supplant(o)

   String.prototype.supplant = function (o) {
     return this.replace(/{([^{}]*)}/g, function (a, b) {
       var r = o[b];
       return typeof r === "string" || typeof r === "number" ? r : a;
     });
   };
   Array.prototype.flatten = function() {
     return [].concat.apply([], this);
   };
   ...
   

3. supplant(o)

   String.prototype.supplant = function (o) {
     return this.replace(/{([^{}]*)}/g,
       function (a, b) {
         var r = o[b];
         return (r !== undefined) ? r : a;
     );
   };
   

4. supplant(obj)

   String.prototype.supplant = function (obj) {
     function replacer(_, name) {
       var value = obj[name]
       var type = (typeof value)
       if (value instanceof Array) return value.toString();
       if (type === 'string')      return value;
       if (type === 'number')      return value;
       return name
     return this.replace(/{([^{}]*)}/g, replacer);
   };
   

5. supplant(str)

   String.prototype.supplant = function (str) {
     return this.replace(/{([^{}]*)}/g, function (a, b) {
       var r = str[b];
       return typeof r === 'string' || typeof r === 'number' ? r : a;
     });
   var toBase64 = function (image) {
     return image.toDataURL('image/jpeg').replace('data:image/jpeg;base64,', '');
   };
   ...