Field character limiter
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Fri. Sep. 28th, 2007 2:08 AM
Here's a quick lil' addon for Prototype that I use often.
Prototype.Promise(condition, action, interval)
condition is a string that you want met before an action is run.
action is a function that does the action.
interval is the polling rate for condition in seconds, and defaults to 1
So, for example, you may want function foo to run, but only once bar has been set:
function foo(a,b) {
this.retVal=a+b;
}
var thingy = {
retVal:0
};
Prototype.Promise(
'thingy.retVal=5',
foo.bind(thingy,5,10),
5
);
Then, in some point in the mysterious future, thingy.retVal gets set to 5, at which point, the Promise goes into effect, and thingy.retVal becomes 10.
Where I find this particularly useful is in making sure that a document is loaded before doing something (condition="$$('body').length>=1), as you can see it used for the include functions.
Speaking of which, the following include functions are great for getting scripts and stylesheets into your page. I won't bother with examples, as they're pretty straightforward.
Meanwhile, Prototype.scriptPath will point to wherever in your server's heirarchy Prototype was loaded from. The regex, you'll note allows for names like prototype.compressed.js, prototype.modified.js, 2007-09-28.prototype.js, etc - just in case you want to keep track of your various hacks of Prototype, as I do.
Prototype.Promise(condition, action, interval)
condition is a string that you want met before an action is run.
action is a function that does the action.
interval is the polling rate for condition in seconds, and defaults to 1
So, for example, you may want function foo to run, but only once bar has been set:
function foo(a,b) {
this.retVal=a+b;
}
var thingy = {
retVal:0
};
Prototype.Promise(
'thingy.retVal=5',
foo.bind(thingy,5,10),
5
);
Then, in some point in the mysterious future, thingy.retVal gets set to 5, at which point, the Promise goes into effect, and thingy.retVal becomes 10.
Where I find this particularly useful is in making sure that a document is loaded before doing something (condition="$$('body').length>=1), as you can see it used for the include functions.
Speaking of which, the following include functions are great for getting scripts and stylesheets into your page. I won't bother with examples, as they're pretty straightforward.
Meanwhile, Prototype.scriptPath will point to wherever in your server's heirarchy Prototype was loaded from. The regex, you'll note allows for names like prototype.compressed.js, prototype.modified.js, 2007-09-28.prototype.js, etc - just in case you want to keep track of your various hacks of Prototype, as I do.
6
Returns the keycode of the key we wrote on a textarea/input. works on IE and Firefox
6
it give us the position of the mouse. works on IE and Firefox
use:
onclick="posicion_mouse(event)"
use:
onclick="posicion_mouse(event)"
6
A wrapper on top of createElement for getting around IE problems with manipulating the name attribute. Unlike most solutions for this, it tests for which method to use once when the page loads rather than every time an element is created. By Chaos of Lost Souls MUD (a text-based fantasy RPG).
6
Return object by type. Revision 2.
7
Just a small snippet I discovered when I was tired writing somearrayname\[i\] I thought there was something like foreach in javascript but couldn't find any so why not make one?
For those foreach(){...} lovers.
Hope it makes your life easier.
For those foreach(){...} lovers.
Hope it makes your life easier.
7
A websafe colour palette generator in JavaScript. Coded this after looking at http://www.bytemycode.com/snippets/snippet/585/ and wanting to do it differently.
It's been refactored so that:
* can pass generateColourPalette an arbitrary array of colour codes and it'll generate a palette.
* it hooks into the page through the external file
* uses an internal stylesheet instead of inline styles
It's been refactored so that:
* can pass generateColourPalette an arbitrary array of colour codes and it'll generate a palette.
* it hooks into the page through the external file
* uses an internal stylesheet instead of inline styles
7
Returns an array with all the objects with certain class. tested on IE 6 and Firefox 2
7
I use this function when passing an array to a function being called from setTimeout();
7
Alternate row coloring using javascript
