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Is it possible to use JavaScript to change the meta-tags of the page?
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<script type='text/javascript' src='http://code.jquery.com/jquery-1.8.2.js'></script>
<button>Change description</button>
<script type='text/javascript'>
$('button').on('click', function() {
// Just replacing the value of the 'content' attribute will not work.
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ansible: lineinfile for several lines?
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228
You can use a loop to do it. Here's an example using a with_items loop:
- name: Set some kern...
Bash script - variable content as a command to run
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217
You just need to do:
#!/bin/bash
count=$(cat last_queries.txt | wc -l)
$(perl test.pl test2 $...
How to change the type of a field?
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215
The only way to change the $type of the data is to perform an update on the data where the dat...
builtins.TypeError: must be str, not bytes
I've converted my scripts from Python 2.7 to 3.2, and I have a bug.
2 Answers
2
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Showing which files have changed between two revisions
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2611
To compare the current branch against master branch:
$ git diff --name-status master
To comp...
Why does this C++ snippet compile (non-void function does not return a value) [duplicate]
...from the C++11 draft standard section 6.6.3 The return statement paragraph 2 which says:
[...] Flowing off the end of a function is equivalent to a return with no value; this results in undefined behavior in a value-returning function. [...]
This means that the compiler is not obligated provid...
Test if string is a number in Ruby on Rails
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12 Answers
12
Active
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Select mySQL based only on month and year
... in my mySQL DB that has some rows. One of this row is a DATE, like this: 2012-02-01
12 Answers
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awk without printing newline
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222
awk '{sum+=$3}; END {printf "%f",sum/NR}' ${file}_${f}_v1.xls >> to-plot-p.xls
print w...