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image.onload event and browser cache
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As you're generating the image dynamically, set the onload property before the src.
var img = new Image();
img.onload = function () {
alert("image is loaded");
}
img.src = "img.jpg";
Fiddle - tested on latest Firefox and Chrome releases.
You can also use t...
Visual Studio 2012 Web Publish doesn't copy files
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I had same error and I change the setting from release to debug and the problem resolved..
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Is there a function to make a copy of a PHP array to another?
...ewLarsson raises a point in the comments below. PHP has a special feature called "references". They are somewhat similar to pointers in languages like C/C++, but not quite the same. If your array contains references, then while the array itself is passed by copy, the references will still resolve to...
Best way to test if a row exists in a MySQL table
...RE ...)
and per the documentation, you can SELECT anything.
Traditionally, an EXISTS subquery starts with SELECT *, but it could
begin with SELECT 5 or SELECT column1 or anything at all. MySQL
ignores the SELECT list in such a subquery, so it makes no difference.
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Why is it necessary to set the prototype constructor?
...TE: Much edited as my previous answer was confusingly written and had some errors that I missed in my rush to answer. Thanks to those who pointed out some egregious errors.
Basically, it's to wire subclassing up correctly in Javascript. When we subclass, we have to do some funky things to make sure...
CSS table layout: why does table-row not accept a margin?
...ered Jan 2 '10 at 23:42
richardtallentrichardtallent
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Force drop mysql bypassing foreign key constraint
...e all tables from a database except one, and I end up having the following error:
6 Answers
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In Firebase, is there a way to get the number of children of a node without loading all the node dat
...tead of event we now have change and context.
The given example throws an error complaining that event.data is undefined. This pattern seems to work better:
exports.countPrescriptions = functions.database.ref(`/prescriptions`).onWrite((change, context) => {
const data = change.after.val();
...
How to write header row with csv.DictWriter?
...ion "functionality", I'd prefer to code it myself; that way you can report ALL "extras" with the keys and values, not just the first extra key. What is a real nuisance with DictWriter is that if you've verified the keys yourself as each dict was being built, you need to remember to use extrasaction=...
What is the template binding vs binding?
.... (if, for example, Padding property didn't exist, you would get a compile error. But if you were to use a binding with TemplatedParent, you would only see the error at runtime.)
It is always a one-way binding.
It requires that both the source and target properties are dependency properties.
It ha...