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How can I run an external command asynchronously from Python?
...e Popen instance can do various other things like you can poll() it to see if it is still running, and you can communicate() with it to send it data on stdin, and wait for it to terminate.
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How do I delete an item or object from an array using ng-click?
...he update of ng-repeat
DEMO: http://plnkr.co/edit/ZdShIA?p=preview
EDIT: If doing live updates with server would use a service you create using $resource to manage the array updates at same time it updates server
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Java switch statement multiple cases
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Sadly, it's not possible in Java. You'll have to resort to using if-else statements.
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How to “test” NoneType in python?
...value. So how can I question a variable that is a NoneType? I need to use if method, for example
7 Answers
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Turn a string into a valid filename?
...URL- and filename- friendly.
The Django text utils define a function, slugify(), that's probably the gold standard for this kind of thing. Essentially, their code is the following.
def slugify(value):
"""
Normalizes string, converts to lowercase, removes non-alpha characters,
and conv...
C++ 读写xml方法整理（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
...e="0"/>
</root>
CMarkup markup;
bool bSucceed = markup.Load(szFile);
if (bSucceed)
{
bSucceed = markup.FindElem();
if (bSucceed)
{
markup.IntoElem();
bSucceed = markup.FindElem(_T("update"));
if (bSucceed)
{
_tcsncpy_s(param.version, markup.GetAttrib(_T("ver")), sizeof(p...
How can I open a URL in Android's web browser from my application?
...ne for me.
As for the missing "http://" I'd just do something like this:
if (!url.startsWith("http://") && !url.startsWith("https://"))
url = "http://" + url;
I would also probably pre-populate your EditText that the user is typing a URL in with "http://".
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How to check if object (variable) is defined in R?
I'd like to check if some variable is defined in R - without getting an error. How can I do this?
6 Answers
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What's the main difference between int.Parse() and Convert.ToInt32
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If you've got a string, and you expect it to always be an integer (say, if some web service is handing you an integer in string format), you'd use Int32.Parse().
If you're collecting input from a user, you'd generally use In...
Compare floats in php
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If you do it like this they should be the same. But note that a characteristic of floating-point values is that calculations which seem to result in the same value do not need to actually be identical. So if $a is a literal ....