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val-mutable versus var-immutable in Scala
...that means is that, if I have an expression "e", I could make a val x = e, and replace e with x. This is the property that mutability break. Whenever you need to make a design decision, maximize for referential transparency.
As a practical matter, a method-local var is the safest var that exists, s...
How can I represent an 'Enum' in Python?
... in PEP 435. It has also been backported to 3.3, 3.2, 3.1, 2.7, 2.6, 2.5, and 2.4 on pypi.
For more advanced Enum techniques try the aenum library (2.7, 3.3+, same author as enum34. Code is not perfectly compatible between py2 and py3, e.g. you'll need __order__ in python 2).
To use enum34, do...
Correct way to write loops for promise.
...ow to correctly construct a loop to make sure the following promise call and the chained logger.log(res) runs synchronously through iteration? (bluebird)
...
How to clone all remote branches in Git?
I have a master and a development branch, both pushed to GitHub . I've clone d, pull ed, and fetch ed, but I remain unable to get anything other than the master branch back.
...
POST JSON to API using Rails and HTTParty
... to my external ticket management system, squishlist.com. They have an api and instructions as follows. You need to authenticate and get a token and then submit the ticket with the token. From squishlist.
...
Bootstrap 3 modal vertical position center
...
.modal {
text-align: center;
}
@media screen and (min-width: 768px) {
.modal:before {
display: inline-block;
vertical-align: middle;
content: " ";
height: 100%;
}
}
.modal-dialog {
display: inline-block;
text-align: left;
vertical-align: midd...
How to force a WPF binding to refresh?
...
if you use mvvm and your itemssource is located in your vm. just call INotifyPropertyChanged for your collection property when you want to refresh.
OnPropertyChanged("YourCollectionProperty");
...
Remove all special characters except space from a string using JavaScript
...this str.replace(/[^a-zA-Z0-9 ]/g, ""); notice there's a space between 0-9 and ]
– Ammar Shah
Mar 7 '19 at 10:50
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Increase font size chrome console
...ou just need a quick, temporary size bump you can press Ctrl + / - to zoom and Ctrl 0 to reset.
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ng-app vs. data-ng-app, what is the difference?
... It seems like such a waste of CPU cycles to manually strip off data- and x-. Why can't the HTML validation rules be changed to accept ng- stuff?
– DaveAlger
May 13 '15 at 14:43
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