camt’s gists

camt / whitespace.js

Created January 22, 2012 08:19

trimming white space in JS easily

	function trim(str, chars) {
	return ltrim(rtrim(str, chars), chars);
	}
	function ltrim(str, chars) {
	chars = chars \|\| "\\s";
	return str.replace(new RegExp("^[" + chars + "]+", "g"), "");
	}
	function rtrim(str, chars) {
	chars = chars \|\| "\\s";
	return str.replace(new RegExp("[" + chars + "]+$", "g"), "");

camt / castToInt.js

Created January 22, 2012 08:20

casting to integers in JavaScript

val = (numberA / numberB) | 0;

camt / internalize.php

Created January 22, 2012 08:22

External redirects from your site trigger web-bots in different ways. If you want to hide them from the web-bots, and have all links on you site point internally, this script is a simple way to do so. You can either run it through a database, which makes

	<?php
	if(isset($_REQUEST['rd'])) {
	$new = $_REQUEST['rd'];
	// DB access
	include("db.php");
	$sql = "SELECT rdURL FROM rd WHERE rdName='".$new." LIMIT 1';";
	$result = mysql_query($sql);
	mysql_close($conn);
	if($result) {
	$row = mysql_fetch_array($result);

camt / ByteToString.cs

Created January 22, 2012 08:23

algorithm for aesthetically converting bytes to strings

	public static string b2s(byte b) {
	string result = Convert.ToString(b, 2);
	while(result.Length < 8 ) result = "0" + result;
	return result;
	}

camt / mailto.html

Created January 24, 2012 19:14

JS creation of mailto link - avoids scrapers and bots

	<script>
	document.write("<a href='mailto:" + 'moc.elpmaxe@em'.split("").reverse().join("") + "'>email</a>");
	</script>

camt / irrevocable.html

Created January 31, 2012 00:14

A simple little trick for confirming with a user before they undertake an action on your web page. When the user clicks the link, they will hit a pop up box, displaying the confirmation message and two buttons. If they click yes the link is followed and t

<a href="irrevocable-action.php?doitnow=yes" onclick="return confirm('Are you really, really, really sure you want to do this?')">Do It!!</a>

camt / RandomAlphaString.cs

Created January 31, 2012 00:15

simple random alpha char string variable in C#

	private const int _length = 15;
	private static string RandomAlphaString {
	get {
	var ret = "";
	var random = new Random();
	while (ret.Length < _length)
	if (random.Next(1, 9) % 2 == 0)
	ret = ret + Convert.ToChar(random.Next(65, 90));
	else
	ret = ret + Convert.ToChar(random.Next(97, 122));

camt / checkClose.js

Created January 31, 2012 00:17

Prevent window close with JS

	function checkClose() {
	if (ok) {
	return "Have you saved your information?";
	}
	}

	var ok = true; // this is reset everytime a new page is loaded

	function okToLeave() { // called if leaving the page is needed
	ok = false;

camt / clientSide.php

Created January 31, 2012 00:18

Client-side time with PHP and JS

	if(!$_REQUEST["client_time"])
	{
	$vars = "?";
	foreach($_REQUEST as $key => $val) {
	$vars .= $key."=".$val."&";
	}
	echo "<script type=\"text/javascript\">";
	echo "localtime = new Date();";
	echo "document.location.href = '".$PHP_SELF.$vars."client_time='
	+ localtime.getTime();";

camt / removeChars.php

Created January 31, 2012 00:21

Strip 'X' end characters from a string with PHP. This is faster for longer strings, as it does not need to count it's way to the end of the string first.

$string = strrev(substr(strrev($string), 2));

Cameron camt