Javascript String format(substitutions)

Description

Javascript String format(substitutions) 


'use strict';/*from w w  w  . java 2 s  . c  o m*/

// Do simple substitutions on any String object. (Monkeypatching FTW.)
// Accepts either an array or an object of subsitutions.
// If you supply an Array:
//   `'Hello {0}.'.format(['world'])` will return: 'Hello world.'
// If you supply an Object:
//   `'Hello {world}.'.format({world: 'Earth'})` will return: 'Hello Earth.'
String.prototype.format = function(substitutions) {
    return this.replace(/\{([A-Za-z0-9]+)\}/g, function(match, key) {
        return substitutions[key] !== undefined ? substitutions[key] : '';
    });
};

Javascript String format(substitutions) 

'use strict';// ww  w. j  a  v  a  2  s .c o  m

// Do simple substitutions on any String object. (Monkeypatching FTW.)
// Accepts either an array or an object of subsitutions.
// If you supply an Array:
//   `'Hello {0}.'.format(['world'])` will return: 'Hello world.'
// If you supply an Object:
//   `'Hello {world}.'.format({world: 'Earth'})` will return: 'Hello Earth.'
String.prototype.format = function(substitutions) {
  return this.replace(/\{([A-Za-z0-9]+)\}/g, function(match, key) {
    return substitutions[key] !== undefined ? substitutions[key] : ''
  })
}



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