javascript templates



// programmers day
if ("100"===Math.ceil(((d=new Date())-(new Date(d.getFullYear(),0,1)))/864e+5).toString(16)){
console.log("party hard");
}else {
// do nothing
}

// xPath javascript helper
function xPathFunct(xPathExp){
var resXPath = document.evaluate(xPathExp, document, null, XPathResult.ANY_TYPE, null);
var result=resXPath.iterateNext();
var resArray = [];
while (result){
resArray.push(result);
result=resXPath.iterateNext();
}
return resArray;
}


// delete all records from vkontakte responce panel by specific user
i=1;xPathFunct("//div[@class='post_like_wrap fl_r']").forEach(function(d){if(/85555558/.test(d.outerHTML)){i++;setTimeout("d.onclick.apply(d)",1000*i);}})

// define property for quick access
Object.defineProperty(Element.prototype,"_",{ get : function(){return this.childNodes;} })

// another way to iterate
for (var i= element.childNodes.length-1; i>=0;i--) {
for (var i= element.childNodes.length; i-->0;) {

// collect vk friend to one list (here html class property handle correct)
(function collect(){var d={};xPathFunct("//div[contains(@class, 'user_block') and contains(@class, 'clear_fix')]/div[1]/div[2]/a[1]").forEach(function(a){console.log(a); d[a.href]=a.innerHTML;}); return d;})()


// return unique properties of two object
function comp(ob1, ob2){
for(a in ob1){
if(a in ob1 && a in ob2){
delete ob2[a];
delete ob1[a];
}
}
return [ob1,ob2];
}
comp({a:1,b:2},{a:2,c:4})


// scriptlet clicker by conditions
Array.prototype.slice.call(document.getElementsByTagName('span')).filter(function(a){return /^exlink/.test(a.id);}).forEach(function(a){var link = a.getElementsByTagName('a')[0]; setTimeout(function(){link.onclick.apply(link)},100)});

// e-mail regexp
[a-zA-Z0-9_.-]+@[a-zA-Z0-9_-]+\.[a-zA-Z].

// javascript string from char codes
String.fromCharCode(1087).concat(String.fromCharCode(1088)).concat(String.fromCharCode(1080)).concat(String.fromCharCode(1074)).concat(String.fromCharCode(1077)).concat(String.fromCharCode(1090));


// css positions demo
http://jsfiddle.net/zYZRC/

// some xss vector
<meta http-equiv="refresh" content="0;url='http://google.com/search?q=qweqwe'">
<META HTTP-EQUIV="refresh" CONTENT="0;url=javascript:alert('XSS');">


// valid XML
<script>
/*<![CDATA[*/
function ololo(ip,sel,sz){

}
/*]]>*/
</script>


// xml parser
parser=new DOMParser();
str = '<?xml version="1.0" ?> <note><to>Tove</to> <from>Jani</from> <heading>Reminder</heading> <body>Dont forget me this weekend!</body> </note>';
xmlDoc=parser.parseFromString(str,"text/xml");

// array average
Array.prototype.avg = function() {
var av = 0;
var cnt = 0;
var len = this.length;
for (var i = 0; i < len; i++) {
var e = this[i];
if (isFinite(e)){
av += e;
cnt++;
}
}
if(cnt==0) return;
return av/cnt;
}

// Enums in javascript
function Enum() {
for (var i in arguments) {
var cur = arguments[i];
this[cur] = cur;
}
Object.freeze(this)
}
var YesNo = new Enum('Yes', 'No');

// from string to charcodes
(function(data){
res = []
for(i=0;i<data.length;i++){
res.push(data[i].charCodeAt(0));
}
// usage: String.fromCharCode(60, 105);
return res;
})("http://")