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bundle install fails with SSL certificate verification error
...
Update
Now that I've karma wh..err mined enough from this answer everyone should know that this should have been fixed.
re: via Ownatik again bundle install fails with SSL certificate verification error
gem update --system
My an...
github locks up mac terminal when using pull command
...a modal text editor, so you would need to:
Press i to enter insert mode.
Now you can type your message, as if you were in a normal
(non-modal) text editor.
Press esc to go back to command mode.
Then type :w followed by enter to save.
Finally :q followed by enter to quit.
...
Python assigning multiple variables to same value? list behavior
...t element of a to 1, the first elements of b and c are 1.
If you want to know if two names are naming the same object, use the is operator:
>>> a=b=c=[0,3,5]
>>> a is b
True
You then ask:
what is different from this?
d=e=f=3
e=4
print('f:',f)
print('e:',e)
Here, you'r...
Center a column using Twitter Bootstrap 3
... <div class="col-md-2 col-md-offset-5"></div>
</div>
Now, there's an obvious drawback for this method. It only works for even column sizes, so only .col-X-2, .col-X-4, col-X-6, col-X-8, and col-X-10 are supported.
Approach 2 (the old margin:auto)
You can center any column s...
What's the yield keyword in JavaScript?
...
Late answering, probably everybody knows about yield now, but some better documentation has come along.
Adapting an example from "Javascript's Future: Generators" by James Long for the official Harmony standard:
function * foo(x) {
while (true) {
...
How to schedule a periodic task in Java?
...xtending TimerTask
public class ScheduledTask extends TimerTask {
Date now;
public void run() {
// Write code here that you want to execute periodically.
now = new Date(); // initialize date
System.out.println("Time is :" + now); // Display curre...
Java string to date conversion
...UR_OF_DAY));
Then you can manipulate that with something like:
Calendar now = Calendar.getInstance();
mydate.set(Calendar.YEAR,2009);
mydate.set(Calendar.MONTH,Calendar.FEBRUARY);
mydate.set(Calendar.DAY_OF_MONTH,25);
mydate.set(Calendar.HOUR_OF_DAY,now.get(Calendar.HOUR_OF_DAY));
mydate.set(Cale...
Kotlin secondary constructor
...
Update: Since M11 (0.11.*) Kotlin supports secondary constructors.
For now Kotlin supports only primary constructors (secondary constructors may be supported later).
Most use cases for secondary constructors are solved by one of the techniques below:
Technique 1. (solves your case) Define a fa...
How to add a jar in External Libraries in android studio
...TEPS
First switch your folder structure from Android to Project.
Now search for the libs folder inside app - build folder.
Once you have pasted the .jar file inside libs folder. Right click on the jar file and at end click on Add as library. This will take care of adding compile f...
Token Authentication for RESTful API: should the token be periodically changed?
... deleted')
# This is required for the time comparison
utc_now = datetime.utcnow()
utc_now = utc_now.replace(tzinfo=pytz.utc)
if token.created < utc_now - timedelta(hours=24):
raise exceptions.AuthenticationFailed('Token has expired')
return t...