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Simple logical operators in Bash
I have a couple of variables and I want to check the following condition (written out in words, then my failed attempt at bash scripting):
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Difference between Lookup() and Dictionary(Of list())
...trying to wrap my head around which data structures are the most efficient and when / where to use which ones.
6 Answers
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Why is f(i = -1, i = -1) undefined behavior?
I was reading about order of evaluation violations , and they give an example that puzzles me.
11 Answers
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Why does Twitter Bootstrap Use Pixels for Font Size?
...ding behind the browser zoom excuse. Really sad to see such a heavily used and influential framework completely ignore accessibility issues and a fundamental cornerstone of responsive design. They are in a position of great responsibility and unfortunately seem to have no intention of acting accordi...
receiver type *** for instance message is a forward declaration
In my iOS5 app, I have NSObject States class, and trying to init it:
9 Answers
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Capture screenshot of active window?
I am making a screen capturing application and everything is going fine. All I need to do is capture the active window and take a screenshot of this active window. Does anyone know how I can do this?
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Splitting a Java String by the pipe symbol using split(“|”)
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You need
test.split("\\|");
split uses regular expression and in regex | is a metacharacter representing the OR operator. You need to escape that character using \ (written in String as "\\" since \ is also a metacharacter in String literals and require another \ to escape it).
You...
How to concatenate strings of a string field in a PostgreSQL 'group by' query?
...ving it at the end, you might want to make your own concatenation function and substitute it for the "textcat" above. Here is one I put together and tested on 8.3.12:
CREATE FUNCTION commacat(acc text, instr text) RETURNS text AS $$
BEGIN
IF acc IS NULL OR acc = '' THEN
RETURN instr;
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jQuery and TinyMCE: textarea value doesn't submit
I am using jQuery and TinyMCE to submit a form, but there is a problem in serialization in that the Textarea value doesn't post.
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Split string on the first white space occurrence
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If you only care about the space character (and not tabs or other whitespace characters) and only care about everything before the first space and everything after the first space, you can do it without a regular expression like this:
str.substr(0,str.indexOf(' ')); /...