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How to set Oracle's Java as the default Java in Ubuntu?
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I put the line:
export JAVA_HOME=/usr/lib/jvm/java-7-oracle
in my ~/.bashrc file.
/usr/lib...
Performance surprise with “as” and nullable types
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10 Answers
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How do I test which class an object is in Objective-C?
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edited Feb 8 '17 at 9:02
Muruganandham K
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Unsigned keyword in C++
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91
From the link above:
Several of these types can be modified using the keywords signed, unsig...
Regex match one of two words
...his will do:
/^(apple|banana)$/
to exclude from captured strings (e.g. $1,$2):
(?:apple|banana)
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Pipe output and capture exit status in Bash
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15 Answers
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Can I add a UNIQUE constraint to a PostgreSQL table, after it's already created?
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371
psql's inline help:
\h ALTER TABLE
Also documented in the postgres docs (an excellent resourc...
How to get an IFrame to be responsive in iOS Safari?
...onsive as well. In theory it's simple, simply aider use <iframe width="100%"></iframe> or set the CSS width to iframe { width: 100%; } however in practice it's not quite that simple, but it can be.
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Ruby on Rails: Delete multiple hash keys
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edited May 22 '14 at 14:51
Dominic Sayers
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