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Undo “git add ”?
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To remove a directory and everything inside it from the index,
git rm --cached -r dir
The --cached switch makes git rm operate on the index only and not touch the working copy. The -r switch makes it recursive.
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UILabel - Wordwrap text
...n't obvious to (like me): The UILabel must have some sort of limit on its width (either from an actual width constraint or margin constraints); otherwise it won't wrap.
– jcady
Jun 24 '16 at 1:18
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How to access object attribute given string corresponding to name of that attribute
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If you want to keep the logic hidden inside the class, you may prefer to use a generalized getter method like so:
class Test:
def __init__(self):
self.attr1 = 1
self.attr2 = 2
def get(self,varname):
return getattr(self,var...
Check if event exists on element [duplicate]
...events are attached to it.
$.each( foo, function(i,o) {
alert(i) // guid of the event
alert(o) // the function definition of the event handler
});
You can inspect by feeding the object reference ( not the jQuery object though ) to $.data, and for the second argument feed 'events' and that...
what is the unsigned datatype?
...ssumed. So "unsigned" is a shorthand for "unsigned int". This has been considered bad practice for a long time, but there is still a fair amount of code out there that uses it.
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Python's “in” set operator
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well I suppose a list or even a string can be considered to have similar properties to a set. They are a collection of elements.
– Arnab Ghosal
Jan 3 '12 at 7:08
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PhpStorm wrap/surround selection?
...rld'
"Hello World"
To enable this, tick on checkbox of Preferences -> IDE -> Editor -> Smart Keys -> Surround Selection on typing quote or brace.
Another way, you select something (word, condition) and press Cmd + Alt + T (on Mac) , Ctrl + Alt + T (on Windows). Available Surround Wit...
Including JavaScript class definition from another file in Node.js
...= User
exports.ROLE_ADMIN = 'admin'
exports.ROLE_USER = 'user'
export.isValidUser = function isValidUser() {
// ...
}
server.js
const {User, ROLE_ADMIN, ROLE_USER, isValidUser} = require('./user.js')
// Instantiate User:
let user = new User()
ES Modules
Since Node.js version 14 it's possible ...
location.host vs location.hostname and cross-browser compatibility?
... According to en.wikipedia.org/wiki/…, the port should not be consider a part of the host (but it is a part of the authority).
– Alec
Mar 14 '19 at 20:52
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How to pass a view's onClick event to its parent on Android?
...lly you redefine the method for example for dispatchTouchEvent, with @Override, to define a new behavior for it, so you just receive a motion event the system has provided to your activity (or another component of your application), and you treat it and/or forward to any number of children component...