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MySQL: Insert record if not exists in table
...I cannot depend on the primary key. But this is exactly what I was looking for.
– Rupert
Jul 2 '10 at 10:41
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Convert SVG image to PNG with PHP
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That's funny you asked this, I just did this recently for my work's site and I was thinking I should write a tutorial... Here is how to do it with PHP/Imagick, which uses ImageMagick:
$usmap = '/path/to/blank/us-map.svg';
$im = new Imagick();
$svg = file_get_contents($usmap);
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nodeValue vs innerHTML and textContent. How to choose?
...aster.
innerText Takes styles into consideration. It won't get hidden text for instance.
innerText didn't exist in firefox until FireFox 45 according to caniuse but is now supported in all major browsers.
share
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How to send a JSON object using html form data
So I've got this HTML form:
5 Answers
5
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In a django model custom save() method, how should you identify a new object?
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You should use is not rather than != when checking for identity with the None object
– Ben James
Dec 4 '09 at 10:38
3
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jQuery - Create hidden form element on the fly
What is the simplest way to dynamically create a hidden input form field using jQuery?
6 Answers
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Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps?
...s follows:
Check if the user-agent is that of an iPhone/iPod Touch
Check for an appInstalled cookie
If the cookie exists and is set to true, set window.location to your-uri:// (or do the redirect server side)
If the cookie doesn't exist, open a "Did you know Your Site Name has an iPhone applicatio...
How to get the focused element with jQuery?
...ds, the bare $(':focus') is equivalent to $('*:focus'). If you are looking for the currently focused element, $( document.activeElement ) will retrieve it without having to search the whole DOM tree.
The answer is:
document.activeElement
And if you want a jQuery object wrapping the element:
$(...
Image inside div has extra space below the image
...n the same line that a, b, c and d sit on.
There is space below that line for the descenders you find on letters like g, j, p and q.
You can:
adjust the vertical-align of the image to position it elsewhere (e.g. the middle) or
change the display so it isn't inline.
div {
border: solid...
Clearing using jQuery
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Easy: you wrap a <form> around the element, call reset on the form, then remove the form using .unwrap(). Unlike the .clone() solutions otherwise in this thread, you end up with the same element at the end (including custom properties that ...