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JavaScript: how to change form action attribute value based on selection?
I'm trying to change the form action based on the selected value from a dropdown menu.
5 Answers
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Unfortunately MyApp has stopped. How can I solve this?
...ve it?
Every time an Android application crashes (or any Java application for that matter), a Stack trace is written to the console (in this case, logcat). This stack trace contains vital information for solving your problem.
Android Studio
In the bottom bar of the window, click on the Logcat b...
What does git rev-parse do?
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git rev-parse is an ancillary plumbing command primarily used for manipulation.
One common usage of git rev-parse is to print the SHA1 hashes given a revision specifier. In addition, it has various options to format this output such as --short for printing a shorter unique SHA1.
There...
Specify width in *characters*
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1em is the height of an M, rather than the width. Same holds for ex, which is the height of an x. More generally speaking, these are the heights of uppercase and lowercase letters.
Width is a totally different issue....
Change your example above to
<div>
<span>1<...
How to display full (non-truncated) dataframe information in html when converting from pandas datafr
...h option to -1:
pd.set_option('display.max_colwidth', -1)
set_option docs
For example, in iPython, we see that the information is truncated to 50 characters. Anything in excess is ellipsized:
If you set the display.max_colwidth option, the information will be displayed fully:
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Unique BooleanField value in Django?
...needed to accomplish this task, what I've done is override the save method for the model and have it check if any other model has the flag already set (and turn it off).
class Character(models.Model):
name = models.CharField(max_length=255)
is_the_chosen_one = models.BooleanField()
def...
How do I reword the very first git commit message?
...y other commit.
The --root option was introduced in Git v1.7.12 (2012). Before then the only option was to use filter-branch or --amend, which is typically harder to do.
Note: see also this similar question and answer.
sha...
How to encode the filename parameter of Content-Disposition header in HTTP?
Web applications that want to force a resource to be downloaded rather than directly rendered in a Web browser issue a Content-Disposition header in the HTTP response of the form:
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Compare object instances for equality by their attributes
...sh__:
class MyClass:
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def __hash__(self):
# necessary for instances to behave sanely in dicts and sets.
return hash((self.foo, self.bar))
A general solution, like the idea of looping through __dict__ and comparing values, is not advisable - it can never be truly genera...
How do I make a transparent canvas in html5?
...und on mobile so layering canvases doesn't work there. (At least on Chrome for Android)
– nicholeous
Jul 6 '15 at 23:25
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