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Are there disadvantages to using a generic varchar(255) for all text-based fields?
...town , country , phone number etc, all of which are defined as VARCHAR(255) even though none of these fields will ever come close to having 255 characters. (If you're wondering, it's this way because Ruby on Rails migrations map String fields to VARCHAR(255) by default and I never bothered t...
The Concept of 'Hold space' and 'Pattern space' in sed
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edited Oct 11 '12 at 8:01
answered Oct 11 '12 at 7:30
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How does the Google “Did you mean?” Algorithm work?
... the explanation directly from the source ( almost )
Search 101!
at min 22:03
Worth watching!
Basically and according to Douglas Merrill former CTO of Google it is like this:
1) You write a ( misspelled ) word in google
2) You don't find what you wanted ( don't click on any results )
3)...
Convert SVG image to PNG with PHP
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$im->readImageBlob($svg);
/*png settings*/
$im->setImageFormat("png24");
$im->resizeImage(720, 445, imagick::FILTER_LANCZOS, 1); /*Optional, if you need to resize*/
/*jpeg*/
$im->setImageFormat("jpeg");
$im->adaptiveResizeImage(720, 445); /*Optional, if you need to resize*/
$im-&...
How do I dump an object's fields to the console?
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429
Possibly:
puts variable.inspect
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What is an .inc and why use it?
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271
It has no meaning, it is just a file extension. It is some people's convention to name files w...
Why do I get “Pickle - EOFError: Ran out of input” reading an empty file?
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132
I would check that the file is not empty first:
import os
scores = {} # scores is an empty dic...
How does a “stack overflow” occur and how do you prevent it?
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126
Stack
A stack, in this context, is the last in, first out buffer you place data while your pro...