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What is meaning of boolean value returned from an event-handling method in Android
...sture. A "gesture" in this case means all events until the final ACTION_UP or ACTION_CANCEL. Returning false from an ACTION_DOWN means you do not want the event and other views will have the opportunity to handle it. If you have overlapping views this can be a sibling view. If not it will bubble up ...
What is the function of the push / pop instructions used on registers in x86 assembly?
...me across people writing that they push a certain register of the processor and pop it again later to restore it's previous state.
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Using Razor within JavaScript
Is it possible or is there a workaround to use Razor syntax within JavaScript that is in a view ( cshtml )?
12 Answers
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Test if string is a number in Ruby on Rails
... There is no to_f in the above, and Float() doesn't exhibit that behavior: Float("330.346.11") raises ArgumentError: invalid value for Float(): "330.346.11"
– Jakob S
Nov 3 '11 at 10:29
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Temporarily disable auto_now / auto_now_add
... recently faced this situation while testing my application. I needed to "force" an expired timestamp. In my case I did the trick by using a queryset update. Like this:
# my model
class FooBar(models.Model):
title = models.CharField(max_length=255)
updated_at = models.DateTimeField(auto_now...
How to set environment variables from within package.json
..."scripts": {
"start": "node app.js",
"test": "NODE_ENV=test mocha --reporter spec"
},
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Then use process.env.NODE_ENV in your app.
Note: This is for Mac & Linux only. For Windows refer to the comments.
share
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How to stop mysqld
To find out the start command for mysqld (using a mac) I can do:
17 Answers
17
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Difference between .success() and .complete()?
... 1.5, all jQuery's AJAX methods return a jqXHR object that provides .error() , .success() , and .complete() methods.
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Is there a concurrent List in Java's JDK?
...tance, where I can access elements by index? Does the JDK have any classes or factory methods I can use?
7 Answers
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Require either of two arguments using argparse
...
I think you are searching for something like mutual exclusion (at least for the second part of your question).
This way, only foo or bar will be accepted, not both.
import argparse
parser = argparse.ArgumentParser()
group = parser.add_m...