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Drawing an SVG file on a HTML5 canvas
...awImage(img, 0, 0);
}
img.src = image64;
svg, img, canvas {
display: block;
}
SVG
<svg height="40">
<rect width="40" height="40" style="fill:rgb(255,0,255);" />
<image xlink:href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAEX0lEQVQ4jUWUyW6cVR...
Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
... exactly one consumer while preserving highly concurrent operation and not blocking inserts. All the simple and obvious solutions you think will solve that problem actually don't in the real world, and tend to degenerate into less efficient versions of single-worker queue fetching.
If you don't nee...
Is there a “previous sibling” selector?
...4.3. Flex Item Z-Ordering
Flex items paint exactly the same as inline blocks, except that order-modified document order is used in place of raw
document order, and z-index values other than auto create a stacking context even if position is static.
5.4. Z-axis Ordering: the z-index prop...
How to check if a string contains a substring in Bash
... @bukzor Quotes stopped working here as of Bash 3.2+: tiswww.case.edu/php/chet/bash/FAQ E14). It's probably best to assign to a variable (using quotes), then compare. Like this: re="My s"; if [[ $string =~ $re ]]
– seanf
May 12 '15 at 0:55
...
PostgreSQL: Modify OWNER on all tables simultaneously in PostgreSQL
...
This: http://archives.postgresql.org/pgsql-bugs/2007-10/msg00234.php is also a nice and fast solution, and works for multiple schemas in one database:
Tables
SELECT 'ALTER TABLE '|| schemaname || '.' || tablename ||' OWNER TO my_new_owner;'
FROM pg_tables WHERE NOT schemaname IN ('pg_cat...
Bootstrap 3 and Youtube in Modal
...;
</html>
visit (link broken): https://parrot-tutorial.com/run_code.php?snippet=bs4_modal_youtube
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Facebook Android Generate Key Hash
...e required SHA1 Key
Then goto
http://tomeko.net/online_tools/hex_to_base64.php
and paste your sha1 key
and finally you will get Required HashKey which you can use it to apply on facebook.
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Shorten string without cutting words in JavaScript
...led this question a million ways and could only find a working version for php nothing close to this and involving loops.
– Josh Bedo
Mar 28 '11 at 3:20
1
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ExpressJS How to structure an application?
...l just mention that I organize my code into 3 distinct sections.
Opening block of CommonJS require calls to state dependencies
Main code block of pure-JavaScript. No CommonJS pollution in here. Don't reference exports, module, or require.
Closing block of CommonJS to set up exports
...
How can you find and replace text in a file using the Windows command-line environment?
...the cat in the hat
ref: http://www.dostips.com/DtTipsStringManipulation.php#Snippets.Replace
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