[devote]

function jQuery() {
    return new jQuery.prototype.init( arguments );
}

jQuery.prototype = {
    constructor: jQuery,
    init: function( selector, context ) {
        this[0] = "lala";
        this[1] = "tratata";
        this.length = 2;
        return this;
    },
    length: 0
}

jQuery.prototype.init.prototype = jQuery.prototype;

alert( JSON.stringify( jQuery() ) );