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Core JavaScript Reference
Gecko DOM Reference
AJAX:Getting Started
HTML4 Reference
CSS 2.1 Specification

This extension adds trim() function:

String.prototype.trim = function(){ return this.replace(/^\s+|\s+$/g,'’); }

//test trim
test = ‘ testing trim ‘;
document.write (’"’ + test.trim() + ‘"’);

This extension splits the string by given separator and returns an array with trimmed  items. It uses the trim() extension above:

String.prototype.splitrim = function(t){ return this.trim().split(new RegExp(’\\s*’+t+’\\s*’)) }

//test splitrim
test = ‘ testing   , splitrim ‘;
var arr = test.splitrim(’,');
document.write (’"’ + arr[0] + ‘"’);
document.write (’"’ + arr[1] + ‘"’);

This extension escapes HTML in the string:

String.prototype.escHtml = function(){ var i,e={’&’:'&amp;’,'<’:'&lt;’,'>’:'&gt;’,'"’:'&quot;’},t=this; for(i in e) t=t.replace(new RegExp(i,’g'),e[i]); return t }

//test escHtml
test = ‘testing <b>escHtml</b>’;
document.write (test.escHtml());

This extension unescapes HTML in the string:

String.prototype.unescHtml = function(){ var i,e={’&lt;’:'<’,'&gt;’:'>’,'&amp;’:'&’,'&quot;’:'"’},t=this; for(i in e) t=t.replace(new RegExp(i,’g'),e[i]); return t }

//test unescHtml
test = ‘testing &lt;b&gt;unescHtml&lt;/b&gt;’;
document.write (test.unescHtml());

This extension URL encodes the string:

String.prototype.urlEncode = function(){ return encodeURIComponent(this); }

//test urlEncode
test = ‘http://www.gmail.com’;
document.write (test.urlEncode());

This extension checks if the string is a valid email address:

String.prototype.isEmail = function () { var rx = new RegExp("\\w+([-+.\’]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*"); var matches = rx.exec(this); return (matches != null && this == matches[0]); }

//test isEmail
test = ‘test@gmail.com’;
document.write (test.isEmail());

This extension checks if the string is a valid URL address:

String.prototype.isURL = function () { var rx = new RegExp("http(s)?://([\\w-]+\\.)+[\\w-]+(/[\\w-\\+ ./?%:&=#\\[\\]]*)?"); var matches = rx.exec(this); return (matches != null && this == matches[0]); }

//test isURL
test = ‘http://www.gmail.com’;
document.write (test.isURL());

This extension checks if the string contains the passed as parameter value:

String.prototype.contains = function(t) { return this.indexOf(t) >= 0 ? true : false; }

//test contains
test = ‘Can you find me?’;
document.write (test.contains(’find me’));

This extension checks if the string begins with the passed as parameter value. The second parameter is for ignore case:

String.prototype.beginsWith = function(t, i) { if (i==false) { return (t == this.substring(0, t.length)); } else { return (t.toLowerCase() == this.substring(0, t.length).toLowerCase()); } }

//test beginsWith
test = ‘Can you find me?’;
document.write (test.beginsWith(’can you’, true));

This extension checks if the string ends with the passed as parameter value. The second parameter is for ignore case:

String.prototype.endsWith = function(t, i) { if (i==false) { return (t == this.substring(this.length - t.length)); } else { return (t.toLowerCase() == this.substring(this.length - t.length).toLowerCase()); } }

//test endsWith
test = ‘Can you find me?’;
document.write (test.endsWith(’Me?’, true));

DateTime dtWET = DateTime.Today;

//get the last day of the week. If you need another day change the 6 to a number between 0 and 6. Please note that depending on you regional settings the week 0 day could be Sunday or Monday.
dtWET = dtWET.AddDays((-(Convert.ToInt32(dtWET.DayOfWeek))) + 6);

dtWET = new DateTime(dtWET.Year, dtWET.Month, dtWET.Day, 22, 00, 0);

SELECT LEFT(md5(UUID()), 10)

The UUID() function returns a Universal Unique Identifier (UUID). The rest is obvious

If you are looking for the same functionality in MS SQL click here.

Page.Form.Target = "_blank";

Or to use the following JavaScript code:

<script type="text/javascript">
    var sFormID = ‘<%=Page.Form.ClientID%>’;
    var oForm = document.getElementById(sFormID);
    oForm.target = ‘_blank’;
</script>

# redirect all http requests  to https
RewriteCond  %HTTPS (?!on).*
RewriteCond Host: (.*)
RewriteRule (.*) https\://$1$2 [I,RP]