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Why do we use $rootScope.$broadcast in AngularJS?
... scope of that app can catch it using a simple: $scope.$on().
It is especially useful to send events when you want to reach a scope that is not a direct parent (A branch of a parent for example)
!!! One thing to not do however is to use $rootScope.$on from a controller. $rootScope is the applicati...
I do not want to inherit the child opacity from the parent in CSS
...
Opacity is not actually inherited in CSS. It's a post-rendering group transform. In other words, if a <div> has opacity set you render the div and all its kids into a temporary buffer, and then composite that whole buffer into the page ...
Hashing a file in Python
...those bigger files in chunks!
import sys
import hashlib
# BUF_SIZE is totally arbitrary, change for your app!
BUF_SIZE = 65536 # lets read stuff in 64kb chunks!
md5 = hashlib.md5()
sha1 = hashlib.sha1()
with open(sys.argv[1], 'rb') as f:
while True:
data = f.read(BUF_SIZE)
i...
How to force a html5 form validation without submitting it via jQuery
...ckValidity()) {
// If the form is invalid, submit it. The form won't actually submit;
// this will just cause the browser to display the native HTML5 error messages.
$myForm.find(':submit').click();
}
Hope this helps. Keep in mind that HTML5 validation is not supported in all browsers.
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Determining if a number is either a multiple of ten or within a particular set of ranges
...rite out the pseudo code, but I'm not entirely sure how to write them logically.
13 Answers
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Best practice to run Linux service as a different user
...ervices default to starting as root at boot time on my RHEL box. If I recall correctly, the same is true for other Linux distros which use the init scripts in /etc/init.d .
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Allowing interaction with a UIView under another UIView
Is there a simple way of allowing interaction with a button in a UIView that lies under another UIView - where there are no actual objects from the top UIView on top of the button?
...
Set keyboard caret position in html textbox
...ion in a Textbox or TextArea with Javascript
A generic function that will allow you to insert the caret at any position of a textbox or textarea that you wish:
function setCaretPosition(elemId, caretPos) {
var elem = document.getElementById(elemId);
if(elem != null) {
if(elem.crea...
Abandoning changes without deleting from history
...rst time you push this closed head to another repository since you are actually create additional heads in the remote repository when you push. So tell Mercurial that this is okay with --force. People who pull the closed head wont be bothered by any warnings.
...
Browser detection in JavaScript? [duplicate]
... +1 from me as well. Sometimes, it's not about feature support, it's actually about the browser. Yes, the user-agent info can be spoofed, but when you're dealing with older browsers and circumventing their bugs (like FF 3's issue with not sending the Content-Length header for read-only AJAX POST m...