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How to find encoding of a file via script on Linux?
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To convert encoding from 8859 to ASCII:
iconv -f ISO_8859-1 -t ASCII filename.txt
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Twig: in_array or similar possible within if statement?
...to change the second line of your second code-block from
{% if myVar is in_array(array_keys(someOtherArray)) %}
to
{% if myVar in someOtherArray|keys %}
in is the containment-operator and keys a filter that returns an arrays keys.
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How do I select an element in jQuery by using a variable for the ID?
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row = $("body").find('#' + row_id);
More importantly doing the additional body.find has no impact on performance. The proper way to do this is simply:
row = $('#' + row_id);
s...
How do I sort an array of hashes by a value in the hash?
...by has sort! for in-place sorting, but there's no in-place variant for sort_by in Ruby 1.8. In practice, you can do:
sorted = sort_me.sort_by { |k| k["value"] }
puts sorted
As of Ruby 1.9+, .sort_by! is available for in-place sorting:
sort_me.sort_by! { |k| k["value"]}
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Replace part of a string with another string
...mp; str, const std::string& from, const std::string& to) {
size_t start_pos = str.find(from);
if(start_pos == std::string::npos)
return false;
str.replace(start_pos, from.length(), to);
return true;
}
std::string string("hello $name");
replace(string, "$name", "Somen...
WebDriver: check if an element exists? [duplicate]
... It seems the default implicit wait time is 0, (seleniumhq.org/docs/04_webdriver_advanced.html) So unless you've configured it to be longer, this shouldn't be necessary.
– Andrew M
May 24 '12 at 9:43
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How to get parameters from the URL with JSP
...r. This is part of the Java Servlet API. See http://java.sun.com/j2ee/sdk_1.3/techdocs/api/javax/servlet/ServletRequest.html for more information.
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Eclipse: have the same file open in two editors?
...ggle Split Editor will split the editor horizontally or vertically.
Ctrl + _ is horizontal and Ctrl + { is vertical. More precisely it's Ctrl + Shift + - and Ctrl + Shift + [.
I had issues with it in Mars (see note below) that seem to have cleared up in Neon.
Mars Note: The split editor seems a bi...
How to install both Python 2.x and Python 3.x in Windows
...the following environment variable (to default on double click):
Name: PY_PYTHON
Value: 3
To launch a script in a particular interpreter, add the following shebang (beginning of script):
#! python2
To execute a script using a specific interpreter, use the following prompt command:
> py -2...
pandas: multiple conditions while indexing data frame - unexpected behavior
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You can use query(), i.e.:
df_filtered = df.query('a == 4 & b != 2')
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