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How to Get True Size of MySQL Database?
...ytes means exactly that - it means that amount of space could be reclaimed if you OPTIMIZE the table or rebuild the table from scratch. When databases store information on disks, they allocate it in blocks; deleting a record often frees a block between used blocks, and it's very expensive to shift a...
Using a dictionary to count the items in a list [duplicate]
...by their temperature, and use a multiset to look up all locations at a specific temperature or temperature range, while getting the fast insertions of a set.) Counter merely counts repetitions; distinct values are lost. That's much less useful--it's nothing more than a wrapped dict. I question ca...
find filenames NOT ending in specific extensions on Unix?
...the grep command:
find . | grep -v '(dll|exe)$'
The -v flag on grep specifically means "find things that don't match this expression."
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Wget output document and headers to STDOUT
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According to the GNU man page “If - is used as file, documents will be printed to standard output, disabling link conversion.” It is more clearly written with a preceding whitespace.
– Josh Habdas
Jul 31 '18 at 2:53...
PHP's array_map including keys
...ill only change the values of the array, so the keys won't be what you specified in the question.
You could write a function that fixes the points above yourself if you wanted to, like this:
function mymapper($arrayparam, $valuecallback) {
$resultarr = array();
foreach ($arrayparam as $key =&g...
Plot a bar using matplotlib using a dictionary
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If you use figure and axes objects, it's ax.set_xticklabels
– Mark
Jan 13 '14 at 5:41
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jQuery count child elements
...a descendant selector, like this:
var count = $("#selected li").length;
If you have to use .children(), then it's like this:
var count = $("#selected ul").children().length;
You can test both versions here.
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How to set a stroke-width:1 on only certain sides of SVG shapes?
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If you need stroke or no-stroke then you can also use stroke-dasharray to do this, by making the dashes and gaps match up with the sides of the rectangle.
rect { fill: none; stroke: black; }
.top { stroke-dasharray: 0,5...
Group By Multiple Columns
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If you're new to grouping with anonymous types the use of the 'new' keyword in this example does the magic.
– Chris
Aug 6 '13 at 15:41
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How to convert float to varchar in SQL Server
I have a float column with numbers of different length and I'm trying to convert them to varchar.
15 Answers
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