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Library not loaded: /usr/local/opt/readline/lib/libreadline.6.2.dylib
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Be careful doing this if you aren't already on the latest version of Postgres. You'll need to reinstall the old Postgres alongside the new one and then do a pg_upgrade
– dazonic
Jan 2 '17 at 2:49
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Call a python function from jinja2
...nd I want to call a python function as a helper, using a similar syntax as if I were calling a macro. jinja2 seems intent on preventing me from making a function call, and insists I repeat myself by copying the function into a template as a macro.
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In C#, should I use string.Empty or String.Empty or “” to intitialize a string?
...n (or possibly once for the whole process - not sure on that front). This difference is negligible - massively, massively insignificant.
Which you find more readable is a different matter, however. It's subjective and will vary from person to person - so I suggest you find out what most people on y...
Bootstrap table striped: How do I change the stripe background colour?
...t to a separate CSS file, not the actual Bootstrap CSS. It's cascading so if I add it after the bootstrap and it works perfectly and keeps it out of the main bootstrap. Plus then I don't have to carry my own modified bootstrap instead I just add my css to each project that needs this.
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Is asynchronous jdbc call possible?
I wonder if there is a way to make asynchronous calls to a database?
16 Answers
16
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Best practices with STDIN in Ruby?
...sed via command line that contains login
ARGF.each do |line|
puts line if line =~ /login/
end
Thank goodness we didn’t get the diamond operator in Ruby, but we did get ARGF as a replacement. Though obscure, it actually turns out to be useful. Consider this program, which prepends copyright h...
Python - write() versus writelines() and concatenated strings
...rings together into a single string before passing it to write.
Note that if you have many lines, you may want to use "\n".join(list_of_lines).
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Join a list of items with different types as string in Python
...onvert the integers to strings when you need to display them. For example, if you have a list of integers then you can convert them one by one in a for-loop and join them with ,:
print(','.join(str(x) for x in list_of_ints))
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What's the most efficient test of whether a PHP string ends with another string?
...r_compare($str, $test, strlen($str)-strlen($test), strlen($test)) === 0;
If $test is longer than $str PHP will give a warning, so you need to check for that first.
function endswith($string, $test) {
$strlen = strlen($string);
$testlen = strlen($test);
if ($testlen > $strlen) retur...
How do I join two lists in Java?
Conditions: do not modifiy the original lists; JDK only, no external libraries. Bonus points for a one-liner or a JDK 1.3 version.
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