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querySelector search immediate children
...;
var hadId = true;
if( !elem.id ) {
hadID = false;
elem.id = 'some_unique_value';
}
sel = '#' + elem.id + sel;
var result = document.querySelectorAll( sel );
if( !hadId ) {
elem.id = '';
}
This certainly isn't jQuery code, but from what I remember, it is basically what they do. Not...
vagrant up failed, /dev/vboxnetctl: no such file or directory
...o module
available for the current kernel (2.6.32-358.23.2.el6.x86_64) or it failed to
load. Please recompile the kernel module and install it by
sudo /etc/init.d/vboxdrv setup
You will not be able to start VMs until this problem is fixed.
...
How to change value of process.env.PORT in node.js?
...
VAR_1=value VAR_2=11827 node -> simply use a space to use more than one variable on the same command
– p4bloch
Nov 18 '15 at 21:59
...
How do I check if a variable exists?
...ar exists.
To check if an object has an attribute:
if hasattr(obj, 'attr_name'):
# obj.attr_name exists.
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Why is “import *” bad?
...citly imported ones, and possibly point to very different things. Defining __all__ in bar is often wise -- this states what will implicitly be imported - but still it's hard to trace where objects come from, without reading and parsing the bar module and following its imports. A network of import * ...
AngularJS : Factory and Service? [duplicate]
... Factory
angular.module('myApp').factory('myFactory', function() {
var _myPrivateValue = 123;
return {
privateValue: function() { return _myPrivateValue; }
};
});
// Service
function MyService() {
this._myPrivateValue = 123;
}
MyService.prototype.privateValue = function() {
retu...
Is it safe to resolve a promise multiple times?
...se(async (rs, rj) => {
const getPromise = () => new Promise((_resolve, reject) => {
try {
reject()
} catch (err) {
rj('error caught in unexpected location')
}
})
try {
await getPromise()
...
Can I disable autolayout for a specific subview at runtime?
...perview];
[self setTranslatesAutoresizingMaskIntoConstraints:YES];
__weak UIView *weakSelf = self;
block(weakSelf);
[superview addSubview:self];
}
@end
I use it like this:
[cell.argumentLabel resizeWithBlock:^(UIView *view) {
[view setFrame:frame];
}];
Hope it helps.
...
How can I reverse a NSArray in Objective-C?
... surrounding method/block return is tricky and probably
// requires a '__block' variable.
// (This is the worst feature of this method, IMHO.)
}];
(Note: Substantially updated in 2014 with five more years of Foundation experience, a new Objective-C feature or two, and a couple tips from th...
Catch Ctrl-C in C
... that is also working under asynchronous interrupts: I would either use sig_atomic_t or atomic_bool types there. I just missed that one. Now, since we are talking: would you like me to rollback my latest edit? No hard feelings there it would be perfectly understandable from your point of view :)
...