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How do you performance test JavaScript code?
...Sometimes the difference is HUGE and worth knowing.
You could just use javascript timers. But I typically get much more consistent results using the native Chrome (now also in Firefox and Safari) devTool methods console.time() & console.timeEnd()
Example of how I use it:
var iterations = 1000000...
image processing to improve tesseract OCR accuracy
...rpen image). But you can give a try to TEXTCLEANER from Fred's ImageMagick Scripts.
If you are not fan of command line, maybe you can try to use opensource scantailor.sourceforge.net or commercial bookrestorer.
share
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.gitignore for PhoneGap/Cordova 3.0 projects - what should I commit?
... before you can actually work with it. It may make sense to create an init script such as:
#!/bin/bash
textReset=$(tput sgr0)
textGreen=$(tput setaf 2)
message_info () {
echo "${textGreen}[my-app]${textReset} $1"
}
message_info "Creating necessary directories..."
mkdir plugins
mkdir platforms
m...
How can I simulate an anchor click via jquery?
...
Try to avoid inlining your jQuery calls like that. Put a script tag at the top of the page to bind to the click event:
<script type="text/javascript">
$(function(){
$('#thickboxButton').click(function(){
$('#thickboxId').click();
});
});
</script>
<i...
Delete all local git branches
...s git branch -D
Importantly, as noted by @AndrewC, using git branch for scripting is discouraged. To avoid it use something like:
git for-each-ref --format '%(refname:short)' refs/heads | grep -v master | xargs git branch -D
Caution warranted on deletes!
$ mkdir br
$ cd br; git init
Initiali...
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 ...
Check existence of directory and create if doesn't exist
I often find myself writing R scripts that generate a lot of output. I find it cleaner to put this output into it's own directory(s). What I've written below will check for the existence of a directory and move into it, or create the directory and then move into it. Is there a better way to approach...
How to call shell commands from Ruby
...
This explanation is based on a commented Ruby script from a friend of mine. If you want to improve the script, feel free to update it at the link.
First, note that when Ruby calls out to a shell, it typically calls /bin/sh, not Bash. Some Bash syntax is not supported by...
How to disable mouse scroll wheel scaling with Google Maps API
...default): Depending on whether the page is scrollable, the Google Maps JavaScript API sets the gestureHandling property to either 'cooperative' or 'greedy'
In short, you can easily force the setting to "always zoomable" ('greedy'), "never zoomable" ('none'), or "user must press CRTL/⌘ to ena...
How to wait for a keypress in R?
I want to pause my R script until the user presses a key.
6 Answers
6
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