Date Formatter with simple pattern - Node.js Date

Node.js examples for Date:Date Format

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Description

Date Formatter with simple pattern

Demo Code

(function() {//from  w  w  w  .  java2  s . c om
    var MONTH = [
        "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"
    ];
    
    var WEEK = [
        "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
    ];
    
    Date.prototype.format = function(pattern)
    {

        
        var year    = this.getFullYear();
        var month   = this.getMonth();
        var date    = this.getDate();
        var day     = this.getDay();
        var hours   = this.getHours();
        var minutes = this.getMinutes();
        var seconds = this.getSeconds();
        var str = "";
        
        for (var i=0,len=pattern.length; i<len; ++i) {
            var ch = pattern.charAt(i);
            var temp = "";
            switch(ch) {
                case "d": temp = date.padding(2, '0'); break;
                case "D": temp = WEEK[day].substr(0, 3); break;
                case "j": temp = date; break;
                case "l": temp = WEEK[day]; break;
                
                // ?
                case "F": temp = MONTH[month]; break;
                case "m": temp = (month+1).padding(2, '0'); break;
                case "M": temp = MONTH[month].substr(0, 3); break;
                case "n": temp = (month+1); break;
                
                case "Y": temp = year; break;
                case "y": temp = year.toString().substr(2, 2); break;
                
                
                case "G": temp = hours; break;
                // case "h": temp = ; break;
                case "H": temp = hours.padding(2, '0'); break;
                case "i": temp = minutes.padding(2, '0'); break;
                case "s": temp = seconds.padding(2, '0'); break;
                
                default : temp = ch; break;
            }
            str += temp;
        }
        return str;
    };
    
})();

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