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AI跳舞 · App Inventor 2 中文网
... 1 项
存储及读取文件把内容写入手机文件，并读取和显示保存的文本。
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代码技巧
4 项
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CSS styling in Django forms
...orms.TextInput(attrs={'class' : 'myfieldclass'}))
or
class MyForm(forms.ModelForm):
class Meta:
model = MyModel
def __init__(self, *args, **kwargs):
super(MyForm, self).__init__(*args, **kwargs)
self.fields['myfield'].widget.attrs.update({'class' : 'myfieldclass'}...
diff to output only the file names
...Stack Exchange, but I'll copy it here as well:
To create a list of new or modified files programmatically the best solution I could come up with is using rsync, sort, and uniq:
(rsync -rcn --out-format="%n" old/ new/ && rsync -rcn --out-format="%n" new/ old/) | sort | uniq
Let me explain...
Why is jquery's .ajax() method not sending my session cookie?
...hanks! I needed to add these in public root .htaccess of my website: <IfModule mod_headers.c> Header set Access-Control-Allow-Origin "localhost" Header set Access-Control-Allow-Credentials "true" </IfModule>
– Vinay Vissh
Jun 4 '17 at 19:10
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How to include package data with setuptools/distribute?
...e up with is to include both package_data and MANIFEST.in in order to accommodate both bdist and sdist.
– Wesley Baugh
Mar 5 '13 at 0:41
7
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How do I retrieve an HTML element's actual width and height?
... Beware! offsetHeight/offsetWidth can return 0 if you've done certain DOM modifications to the element recently. You may have to call this code in a setTimeout call after you've modified the element.
– Dan Fabulich
Jan 19 '10 at 5:59
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Does Python have a ternary conditional operator?
...ing concepts. A convincing argument is the % operator, mimicking the way "mod" is used in math would have been a disaster. So no, I don't accept your argument. It is like adhering to imperial units. Groetjes Albert
– Albert van der Horst
Jun 17 '18 at 12:50
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How Can I Set the Default Value of a Timestamp Column to the Current Timestamp with Laravel Migratio
...(see PR 10962 and commit 15c487fe) you can use the new useCurrent() column modifier method to set the CURRENT_TIMESTAMP as a default value for a column:
$table->timestamp('created_at')->useCurrent();
Back to the question, on MySQL you could also use the ON UPDATE clause through DB::raw():
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ETag vs Header Expires
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Etag and Last-modified headers are validators.
They help the browser and/or the cache (reverse proxy) to understand if a file/page, has changed, even if it preserves the same name.
Expires and Cache-control are giving refresh information...
Multi-line string with extra space (preserved indentation)
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Thanks for explaining why mod sees extra space when using “echo” command. This answer also is working well when using in bash script (as oppose to interactive shell session). Feel like this is the real answer and should be an accepted answer.
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