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UICollectionView current visible cell index
...n during a short scroll. May or may not be a good thing, depending on what one wants to do.
– ToolmakerSteve
Jun 28 '16 at 12:39
4
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How can I test an AngularJS service from the console?
...
TLDR: In one line the command you are looking for:
angular.element(document.body).injector().get('serviceName')
Deep dive
AngularJS uses Dependency Injection (DI) to inject services/factories into your components,directives and ...
How can I strip first and last double quotes?
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The one below is safer!
– R Claven
Dec 21 '16 at 16:28
add a comment
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How do I ignore an error on 'git pull' about my local changes would be overwritten by merge?
...t this will still prevent merging if those staged changes collide with the ones from upstream.
If you want to overwrite only specific parts of your local changes, there are two possibilities:
Commit everything you don't want to overwrite and use the method above for the rest.
Use git checkout p...
How to get started with Windows 7 gadgets
...er programmed a gadget for Vista or Seven, but I would like to try to make one. But where do I start? I have tried to search around on google and msdn, but I haven't managed to find anything useful. Either very, very old stuff (Vista beta stuff), already made gadgets or differences between gadgets i...
Why does the is operator return false when given null?
...anks for the great question!
You're staring at an empty driveway.
Someone asks you "can your driveway hold a Honda Civic?"
Yes. Yes it can.
Someone points you at a second driveway. It is also empty. They ask "Can the current contents of my driveway fit in your driveway?"
Yes, obviously. Both...
Extending the User model with custom fields in Django
...least painful and indeed Django-recommended way of doing this is through a OneToOneField(User) property.
Extending the existing User model
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If you wish to store information related to User, you can use a one-to-one relationship to a model containing the fields for additional information. This on...
How to check if a view controller is presented modally or pushed on a navigation stack?
...This does not work if you present a view controller then it pushes another one.
– Lee
Nov 12 '15 at 13:58
3
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How do I clear/delete the current line in terminal?
...or to start of line
Ctrl+e Move cursor to end of line
Ctrl+b Move back one character
Alt+b Move back one word
Ctrl+f Move forward one character
Alt+f Move forward one word
Ctrl+d Delete current character
Ctrl+w Cut the last word
Ctrl+k Cut everything after the cursor
Alt+d Cut word ...
Bash ignoring error for a particular command
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Example:
$ cat /tmp/1.sh
particular_script()
{
false
}
set -e
echo one
particular_script || true
echo two
particular_script
echo three
$ bash /tmp/1.sh
one
two
three will be never printed.
Also, I want to add that when pipefail is on,
it is enough for shell to think that the entire pipe ...