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How to hide the keyboard when I press return key in a UITextField?
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adding <UITextFieldDelegate> in .h file and set delegate in viewdidload [yourTextField setDelegate:self]; will complete it!
– Umit Kaya
Jul 16 '15 at 5:35
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count the frequency that a value occurs in a dataframe column
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Use groupby and count:
In [37]:
df = pd.DataFrame({'a':list('abssbab')})
df.groupby('a').count()
Out[37]:
a
a
a 2
b 3
s 2
[3 rows x 1 columns]
See the online docs: http://pandas.pydata.org/pandas-docs/stable/groupby.html
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MenuItemCompat.getActionView always returns null
...library but the MenuItemCompat.getActionView always return null in every Android version I tested (4.2.2, 2.3.4 ....)
11 ...
Which HTML Parser is the best? [closed]
...f parsers. Up until now, I was using HtmlUnit headless browser for parsing and browser automation.
3 Answers
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Python Charts库(Highcharts API的封装) - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...series format. This format is a dictionary containing two properties: data and name:
charts.plot(dict(data=data, name='My series'))
The data itself has to be one of these two options:
A single list (or numpy array):
data = [1,2,5,9,6,3,4,8]
A list containing x,y pairs:
data = [[1,...
How do I make python wait for a pressed key?
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@Solarsaturn9 and an increasing and large number do not. Thus this answer did not work for me, and the many other that come here.
– ctrl-alt-delor
Oct 22 '15 at 22:00
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Switch statement for string matching in JavaScript
...you don't want to compare in your match, you don't need a substring match, and could do:
switch (base_url_string) {
case "xxx.local":
// Blah
break;
case "xxx.dev.yyy.com":
// Blah
break;
}
...but again, that only works if that's the complete string you're ...
Why does the PHP json_encode function convert UTF-8 strings to hexadecimal entities?
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JSON_UNESCAPED_UNICODE was introduced in PHP 5.4.0, and is unavailable in earlier versions. When using it in earlier versions you will get this error: "Warning: json_encode() expects parameter 2 to be long, string given in ...". See CertaiN's answer below for 5.3 solution.
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How do I add a bullet symbol in TextView?
I have a TextView and I want to add a bullet symbol in my text through XML. Is it possible?
9 Answers
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How to define multiple CSS attributes in jQuery?
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Better to just use .addClass() and .removeClass() even if you have 1 or more styles to change. It's more maintainable and readable.
If you really have the urge to do multiple CSS properties, then use the following:
.css({
'font-size' : '10px',
'width...