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jQuery Tips and Tricks
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@Ben: The reason I avoid such idioms in JavaScript is because I don't want to give the illusion of someDiv having being scoped in the if statement, because it isn't; JavaScript only supports function scope
– Andreas Grech
May 3 '1...
How to move screen without moving cursor in Vim?
...r triggerhappy. Finally, display your caps lock state (can't be done in Vimscript.)...
– John P
Aug 9 '17 at 22:19
2
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Draw on HTML5 Canvas using a mouse
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Here is a working sample.
<html>
<script type="text/javascript">
var canvas, ctx, flag = false,
prevX = 0,
currX = 0,
prevY = 0,
currY = 0,
dot_flag = false;
var x = "black",
y = 2;
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Set element focus in angular way
...our controllers or to focus elements declaratively in the html.
DEMO
JAVASCRIPT
Service
.factory('focus', function($timeout, $window) {
return function(id) {
// timeout makes sure that it is invoked after any other event has been triggered.
// e.g. click events that need to run ...
Are PHP include paths relative to the file or the calling code?
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It's relative to the main script, in this case A.php. Remember that include() just inserts code into the currently running script.
That is, does it matter which file the include is called from
No.
If you want to make it matter, and do an inclu...
Get a list of all the files in a directory (recursive)
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This is what I came up with for a gradle build script:
task doLast {
ext.FindFile = { list, curPath ->
def files = file(curPath).listFiles().sort()
files.each { File file ->
if (file.isFile()) {
list << file
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How to detect internet speed in JavaScript?
How can I create a JavaScript page that will detect the user’s internet speed and show it on the page? Something like “your internet speed is ??/?? Kb/s” .
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How do you stretch an image to fill a while keeping the image's aspect-ratio?
...100%;
}
Since you don't know the aspect ratio, you'll have to use some scripting. Here is how I would do it with jQuery (demo):
CSS
.container {
width: 40%;
height: 40%;
background: #444;
margin: 0 auto;
}
.container img.wide {
max-width: 100%;
max-height: 100%;
hei...
Can I have H2 autocreate a schema in an in-memory database?
...Yes, H2 supports executing SQL statements when connecting. You could run a script, or just a statement or two:
String url = "jdbc:h2:mem:test;" +
"INIT=CREATE SCHEMA IF NOT EXISTS TEST"
String url = "jdbc:h2:mem:test;" +
"INIT=CREATE SCHEMA IF NOT EXISTS TEST\\;" +
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Do AJAX requests retain PHP Session info?
... to the server whether it's a regular request or an AJAX request. The Javascript code does not need to do anything special or even to be aware of this happening, it just works the same as it does with regular requests.
shar...