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Any reason to clean up unused imports in Java, other than reducing clutter?
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Another way to get to it the organize imports action is by clicking ctrl+3 (at least on windwos) and then typing imports. It is obviously slower then ctrl+shift+O but its a way to quickly find it (and many other actions that you either remeber or are just trying to find) even if y...
I need to get all the cookies from the browser
...g document.cookie you will get a list of escaped key=value pairs seperated by a semicolon.
secret=do%20not%20tell%you;last_visit=1225445171794
To simplify the access, you have to parse the string and unescape all entries:
var getCookies = function(){
var pairs = document.cookie.split(";");
v...
Using Linq to group a list of objects into a new grouped list of list of objects
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var groupedCustomerList = userList
.GroupBy(u => u.GroupID)
.Select(grp => grp.ToList())
.ToList();
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How to convert current date into string in java?
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FYI, these troublesome classes are now legacy, supplanted by the java.time classes. See Oracle Tutorial.
– Basil Bourque
Aug 18 '17 at 15:46
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demystify Flask app.secret_key
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Anything that requires encryption (for safe-keeping against tampering by attackers) requires the secret key to be set. For just Flask itself, that 'anything' is the Session object, but other extensions can make use of the same secret.
secret_key is merely the value set for the SECRET_KEY confi...
What are the primary differences between TDD and BDD? [closed]
... certain way to write user stories, including high-level tests. An example by Tom ten Thij:
Story: User logging in
As a user
I want to login with my details
So that I can get access to the site
Scenario: User uses wrong password
Given a username 'jdoe'
And a password 'letmein'
When t...
Pandas read_csv low_memory and dtype options
...lumn is very memory demanding. Pandas tries to determine what dtype to set by analyzing the data in each column.
Dtype Guessing (very bad)
Pandas can only determine what dtype a column should have once the whole file is read. This means nothing can really be parsed before the whole file is read unle...
Set active tab style with AngularJS
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One way of doing this would be by using ngClass directive and the $location service. In your template you could do:
ng-class="{active:isActive('/dashboard')}"
where isActive would be a function in a scope defined like this:
myApp.controller('MyCtrl', f...
How do iOS Push Notifications work?
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@Mugen: Device token is used by APNS to identify which device it is supposed to forward the payload sent by provider!
– D4ttatraya
Jan 6 '17 at 13:24
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How to filter SQL results in a has-many-through relation
...NDEX sc_club_id_idx ON student_club (club_id);
club_pkey is not required by most queries here.
Primary keys implement unique indexes automatically In PostgreSQL.
The last index is to make up for this known shortcoming of multi-column indexes on PostgreSQL:
A multicolumn B-tree index can be us...