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Get program execution time in the shell
I want to execute something in a linux shell under a few different conditions, and be able to output the execution time of each execution.
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Removing multiple classes (jQuery)
...ys to .addClass(), .removeClass() and toggleClass(), which makes it easier if there is any logic which determines which classes should be added or removed, as you don't need to mess around with the space-delimited strings.
$("div").removeClass(["class1", "class2"]);
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How can I check if a command exists in a shell script? [duplicate]
I am writing my first shell script. In my script I would like to check if a certain command exists, and if not, install the executable. How would I check if this command exists?
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Search for all occurrences of a string in a mysql database [duplicate]
... to search all tables and all fields. But I have no idea where to start or if it's even possible.
17 Answers
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IE 8: background-size fix [duplicate]
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As posted by 'Dan' in a similar thread, there is a possible fix if you're not using a sprite:
How do I make background-size work in IE?
filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(
src='images/logo.gif',
sizingMethod='scale');
-ms-filter: "progid:DXImageTransform.Microso...
How to compute the similarity between two text documents?
... will return normalized tf-idf
pairwise_similarity = tfidf * tfidf.T
or, if the documents are plain strings,
>>> corpus = ["I'd like an apple",
... "An apple a day keeps the doctor away",
... "Never compare an apple to an orange",
... "I prefer scikit-lea...
How to select the nth row in a SQL database table?
... the 21st row. OFFSET 20 is telling Postgres to skip the first 20 records. If you don't specify an ORDER BY clause, there's no guarantee which record you will get back, which is rarely useful.
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How do I output text without a newline in PowerShell?
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Downvoted because the OP's example specifically uses Write-Output, which has vastly different function than Write-Host. Readers should note this big discrepency before copy/pasting the answer.
– NathanAldenSr
Mar 7 '15 at 2:5...
Extract numbers from a string
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If you just want to filter everything other than the numbers out, the easiest is to use filter_var:
$str = 'In My Cart : 11 items';
$int = (int) filter_var($str, FILTER_SANITIZE_NUMBER_INT);
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How to call a method after a delay in Android
I want to be able to call the following method after a specified delay.
In objective c there was something like:
31 Answer...