javascript/ jquery snippets

jquery.js

//structure
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script>
    
<script type="text/javascript">
        $(document).ready(function() {
                code
                })    //    document ready finished; 
    </script>

//on exit
$(window).unload(function(){
        
});        

//unique array
Array.prototype.unique = function() {
    var o = {}, i, l = this.length, r = [];
    for(i=0; i<l;i++) o[this[i]] = this[i];
    for(i in o) r.push(o[i]);
    return r;
};

//variable interpolation
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;
        }
    );
};

//sort json key

function sortObject(o) {
    var sorted = {},
    key, a = [];

    for (key in o) {
        if (o.hasOwnProperty(key)) {
                a.push(key);
        }
    }

    a.sort();

    for (key = 0; key < a.length; key++) {
        sorted[a[key]] = o[a[key]];
    }
    return sorted;
}


//call fanfou api;

 $.getJSON("http://api.fanfou.com/statuses/user_timeline.json?callback=?", {id:"zhasm", count:1}, function(data){
    console.log(data[0].text);
});

//format date to 1909-12-31 21:03:58 format
Date.prototype.format= function () {
    var datestring="{year}-{month}-{day} {hour}:{min}:{sec}".supplant({year:
            this.getFullYear(),
            month:this.getMonth()+1,
            day:this.getDate(),
            hour:this.getHours(),
            min:this.getMinutes(),
            sec:this.getSeconds()
            });
    return datestring.replace(/\b(\d)\b/g, "0$1");
};