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Compiled vs. Interpreted Languages
...es during overall program execution. It (probably) only gets compiled once from bytecode to machine code. Hence the runtime overhead of JIT is small, and can be ignored for long-running programs. After the JIT compiler has finished doing its job, you will effectively be running pure machine code all...
How do I add a placeholder on a CharField in Django?
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For a ModelForm, you can use the Meta class thus:
from django import forms
from .models import MyModel
class MyModelForm(forms.ModelForm):
class Meta:
model = MyModel
widgets = {
'name': forms.TextInput(attrs={'placeholder': 'Name'}),
...
Why do we need break after case statements?
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Java comes from C and that is the syntax from C.
There are times where you want multiple case statements to just have one execution path.
Below is a sample that will tell you how many days in a month.
class SwitchDemo2 {
public st...
Where is Maven' settings.xml located on mac os?
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I created a symlink to it from ~/.m2: ln -s /usr/share/maven/conf/settings.xml settings.xml
– craig
Dec 3 '12 at 15:57
1
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jQuery Call to WebService returns “No Transport” error
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If your jQuery page isn't being loaded from http://localhost:54473 then this issue is probably because you're trying to make cross-domain request.
Update 1
Take a look at this blog post.
Update 2
If this is indeed the problem (and I suspect it is), you might wan...
How to get the full url in Express?
...e value https, in which case you know that's your protocol
The host comes from req.get('host') as Gopal has indicated
Hopefully you don't need a non-standard port in your URLs, but if you did need to know it you'd have it in your application state because it's whatever you passed to app.listen at s...
How to restart Jenkins manually?
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Are there any internal links from jenkins to do this instead of rememebering magic url's?
– rogerdpack
Sep 20 '16 at 19:15
6
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Running a cron job on Linux every six hours
...out
0 */6 * * * /path/to/mycommand
This means every sixth hour starting from 0, i.e. at hour 0, 6, 12 and 18 which you could write as
0 0,6,12,18 * * * /path/to/mycommand
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What does the Subversion status symbol “~” mean?
...w without a .svn file. Any idea on how to fix that? Do I need to delete it from subversion and add it again?
– jergason
May 12 '09 at 15:47
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Can an html element have multiple ids?
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No. From the XHTML 1.0 Spec
In XML, fragment identifiers are of
type ID, and there can only be a
single attribute of type ID per
element. Therefore, in XHTML 1.0 the
id attribute is defined to be of type
ID. In orde...