大约有 10,000 项符合查询结果（耗时：0.0245秒） [XML]
How to get the first element of an array?
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var a = []; a[7] = 'foo'; alert(a[0]);
– Petah
Jun 16 '15 at 0:41
75
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Calculate a percent with SCSS/SASS
...kGinanto for px you can just add +px to the end of the line, e.g. width: ($foo + $bar) +px
– DisgruntledGoat
Mar 6 '13 at 21:52
2
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Difference between two dates in MySQL
How to calculate the difference between two dates, in the format YYYY-MM-DD hh: mm: ss and to get the result in seconds or milliseconds?
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Android - set TextView TextStyle programmatically?
...="fill_parent"
android:layout_height="wrap_content
android:text="FOO" />
And in the java code of your Activity you do this:
TextView textViewTitle = (TextView) findViewById(R.id.text_view_title);
textViewTitle.setTextAppearance(this, R.style.RedHUGEText);
It worked for me! And it a...
Is there a visual profiler for Python? [closed]
I use cProfile now but I find it tedious to write pstats code just to query the statistics data.
12 Answers
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Cross-Domain Cookies
...'s no such thing as cross domain cookies. You could share a cookie between foo.example.com and bar.example.com but never between example.com and example2.com and that's for security reasons.
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Temporarily disable auto_now / auto_now_add
...e 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=True, auto_now_add=True)
# my tests
foo = FooBar.objects.get(pk=1)
# force a timestamp
lastweek = datetime....
Convert RGBA PNG to RGB with PIL
...paste(png, mask=png.split()[3]) # 3 is the alpha channel
background.save('foo.jpg', 'JPEG', quality=80)
Result @80%
Result @ 50%
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Is it possible to style a select box? [closed]
...;
height: 15px;
}
<select class='select'>
<option value='foo'>bar</option>
</select>
this is so you can still click on it
Then make div with the same dimensions as the select box. The div should lay under the select box as the background. Use { position: absol...
Can an Option in a Select tag carry multiple values?
...ence":[0,1,2,3]}'>Option one</option>
<option value='{"foo":"bar","one":"two"}'>Option two</option>
</select>
Edited (3 years after answering) to put both values into JSON format (using JSON.stringify()) because of a complaint that my proof-of-concept answer ...