Showing posts with label function. Show all posts
Showing posts with label function. Show all posts

Wednesday, May 16, 2012

imageantialias call to undefined function error with GD installed


I need help with a php script. It is a CMS that has been implemented into a website. When trying to add a new product IMAGE or trying to edit current images, I am getting the following error:

Thursday, May 10, 2012

Scan Javascript for abusive functions and patterns


We have an OpenSource Extension Similar like Greasemonkey only used in Firefox . Users can submit (Java)scripts for other Users to run. This gets abused by sending malicious code.

function* in JavaScript


In this page I found a new JavaScript function type:




// NOTE: "function*" is not supported yet in Firefox.
// Remove the asterisk in order for this code to work in Firefox 13

function* fibonacci() { // !!! this is the interesting line !!!
let [prev, curr] = [0, 1];
for (;;) {
[prev, curr] = [curr, prev + curr];
yield curr;
}
}

Why does a function declaration override non-writable properties of the global object?


Setting a property descriptor like this:




Object.defineProperty(window, 'someFunction', {
value: function() { alert('safe'); },
writable: false,
enumerable: false,
configurable: false
});

Thursday, April 12, 2012

PHP pass function as param then call the function?


I need to pass a function as a parameter to another function and then call the passed function from withing the function...This is probably easier for me to explain in code..I basically want to do something like this:

Sunday, April 8, 2012

Passing parameters to a JQuery function



I'm creating HTML with a loop that has a column for Action. That column is a Hyperlink that when the user clicks calls a JavaScript function and passes the parameters...





example:







<a href="#" OnClick="DoAction(1,'Jose');" > Click </a>

<a href="#" OnClick="DoAction(2,'Juan');" > Click </a>

<a href="#" OnClick="DoAction(3,'Pedro');" > Click </a>

...

<a href="#" OnClick="DoAction(n,'xxx');" > Click </a>







I want that function to call an Ajax jQuery function with the correct parameters.





Any help?



Source: Tips4all

Friday, February 17, 2012

this.function is not a function error, but function exists


I have some code to get calendar events and display them. The display is only updated if the events have changed, since the last call.

javascript function not returning correct value


I have this function that checks a UK postcode. The problem is that it never returns true or false - only undefined .

Friday, February 10, 2012

PostGIS function to connect geometry LINE together?


(note: the_geom is a geometry value (TYPE: LINESTRING), in this case i random them for readability)