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How to query MongoDB with “like”?
...beginning of the string.
note: mongodb uses regular expressions which are more powerful than "LIKE" in sql. With regular expressions you can create any pattern that you imagine.
For more info on regular expressions refer to this link
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/R...
Java RegEx meta character (.) and ordinary dot?
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Perl-style regular expressions (which the Java regex engine is more or less based upon) treat the following characters as special characters:
.^$|*+?()[{\ have special meaning outside of character classes,
]^-\ have special meaning inside of character classes ([...]).
So you need to e...
Python str vs unicode types
...'.replace('\xa8', '')
à�ìòù
What before was valid UTF-8, isn't anymore. Using a unicode string you cannot operate in such a way that the resulting string isn't valid unicode text.
You can remove a code point, replace a code point with a different code point etc. but you cannot mess with the ...
Checking if form has been submitted - PHP
...ou can use hash) Ex:
$token = hash (string $algo , string $data [, bool $raw_output = FALSE ] );
Assign this token to a session variable. Ex:
$_SESSION['form_token'] = $token;
Add a hidden input to submit the token. Ex:
input type="hidden" name="token" value="{$token}"
then as part of your ...
Google fonts URL break HTML5 Validation on w3.org
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I would expect raw UTF-8 to be valid in UTF-8 encoded HTML without encoding other characters but those used for HTML e.g. &, " and '. And those special characters would need to be encoded by HTML rules (e.g. &amp etc). The user age...
Merge two (or more) lists into one, in C# .NET
Is it possible to convert two or more lists into one single list, in .NET using C#?
13 Answers
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How do I delete all messages from a single queue using the CLI?
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To purge queue you can use following command (more information in API doc):
curl -i -u guest:guest -XDELETE http://localhost:15672/api/queues/vhost_name/queue_name/contents
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Get the Query Executed in Laravel 3/4
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typecast string to integer - Postgres
I am importing data from a table which has raw feeds in Varchar, I need to import a column in varchar into a string column. I tried using the <column_name>::integer as well as to_number(<column_name>,'9999999') but I am getting errors, as there are a few empty fields, I need to retri...
How to add texture to fill colors in ggplot2
...lowering the height of the bar. This is clunky to achieve and there may be more streamlined approaches but this illustrates how it can be achieved.
The mesh pattern is a combination of both. Firstly draw the vertical lines and then add the horizontal lines setting fill as fill='transparent' to ensu...