Nodejs String Format format(object)

Method Source Code

/**/*from  w ww  .j  a  v a  2s. c o m*/
 * Parse a text with a placeholder object
 * @param object
 * @returns {String}
 */
String.prototype.format = function format(object) {
    let parsed = this;
    for (const option in object) {
        if ({}.hasOwnProperty.call(object, option)) {
            const regex = new RegExp(`#{${option}}`, 'g');
            parsed = parsed.replace(regex, object[option]);
        }
    }

    return parsed;
};

export default String.prototype.format;

Related

1. format(options)

   String.prototype.format = String.prototype.f = function(options) {
       options = options ? options : [];
       if (typeof options != "object") options = [options];
       var s = this,
           i = options.length;
       while (i--) {
           s = s.replace(new RegExp('\\{' + i + '\\}', 'gm'), options[i]);
       return s;
   ...
   

2. format()

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

3. format()

   String.prototype.format = String.prototype.format ||
   function () {
       var str = this.toString();
       if (arguments.length) {
           var t = typeof arguments[0];
           var key;
           var args = ("string" === t || "number" === t) ?
               Array.prototype.slice.call(arguments)
               : arguments[0];
   ...
   

4. format()

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

5. format()

   String.prototype.format = String.prototype.format || function format() {
       var args = arguments;
       return this.replace(/\{(\d+)\}/g, function($0, $1) {
           return args[+$1];
       });
   };
   

6. format()

   function format () {
     if (arguments.length === 0) return this;
     var iter;
     if (arguments.length > 1) { 
       iter = arguments;
     } else {
       iter = arguments[0];
     var ret = this;
   ...
   

7. format()

   (function(){
   function format () {
     if (arguments.length === 0) return this;
     var iter;
     if (arguments.length > 1) { 
       iter = arguments;
     } else {
       iter = arguments[0];
     var ret = this;
     for (var i in iter) {
       ret = ret.replace('{'+i+'}', iter[i]);
     return ret;
   String.prototype.format = format;
   })();
   

8. toFormattedString(f)

   Date.prototype.toFormattedString = function (f) {
       var nm = this.getMonthName();
       var nd = this.getDayName();
       f = f.replace(/yyyy/g, this.getFullYear());
       f = f.replace(/yy/g, String(this.getFullYear()).substr(2, 2));
       f = f.replace(/MMM/g, nm.substr(0, 3).toUpperCase());
       f = f.replace(/Mmm/g, nm.substr(0, 3));
       f = f.replace(/MM\*/g, nm.toUpperCase());
       f = f.replace(/Mm\*/g, nm);
   ...
   

9. toFormattedString(f)

   Date.prototype.toFormattedString = function(f) {
       f = f.replace(/yyyy/g, this.getFullYear());
       f = f.replace(/yy/g, String(this.getFullYear()).substr(2, 2));
       f = f.replace(/mm/g, String(this.getMonth() + 1).padLeft('0', 2));
       f = f.replace(/dd/g, String(this.getDate()).padLeft('0', 2));
       f = f.replace(/HH/g, String(this.getHours()).padLeft('0', 2));
       f = f.replace(/MM/g, String(this.getMinutes()).padLeft('0', 2));
       return f;
   };
   ...