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jQuery Validate Plugin - How to create a simple custom rule?
...ng the syntax data-rule-rulename="true";
So to check if at least one of a group of checkboxes is checked:
data-rule-oneormorechecked
<input type="checkbox" name="colours[]" value="red" data-rule-oneormorechecked="true" />
addMethod
$.validator.addMethod("oneormorechecked", function(value...
Inserting a Python datetime.datetime object into MySQL
...mat string."""
# 6-digits string.
microseconds = regexp.search(dt).group(1)
return regexp.sub('.%d' % round(float(microseconds) / 1000), dt)
How to clear jQuery validation error messages?
...d text color unless you call .removeClass(). Example: $('#myform .control-group').removeClass('error');
– jlewkovich
May 30 '14 at 15:13
...
Serialize form data to JSON [duplicate]
...
"name should be ALWAYS unique"... Ummm... checkbox group?
– Jeff Lowery
Jun 5 '15 at 0:19
...
html select option separator
...t and be the best supported. I've also included an example of using the optgroup.
optgroup (this way kinda sucks):
<select>
<optgroup>
<option>First</option>
</optgroup>
<optgroup label="_________">
<option>Second</o...
Drop unused factor levels in a subsetted data frame
...etted dataframe and use it as the data argument to a lattice function, and groups will be handled correctly.
– Mars
Nov 21 '15 at 5:44
...
How to grep and replace
...vanced features that are only relevant to the substitution, e.g. capturing groups.
Translation: grep recursively and list files that match this PCRE pattern, separated by nul to protect any special characters in the filename, then pipe those filenames to xargs which is expecting a nul-separated lis...
How do I use regex in a SQLite query?
...le lot easier if you normalised your database structure by replacing those groups within a single column with a separate row for each number in the comma-separated list. Then you could not only use the = operator instead of a regular expression, but also use more powerful relational tools like joins...
Is log(n!) = Θ(n·log(n))?
...veration is quite simple:
see http://en.wikipedia.org/wiki/Logarithm -> Group Theory
log(n!) = log(n * (n-1) * (n-2) * ... * 2 * 1) = log(n) + log(n-1) + ... + log(2) + log(1)
Think of n as infinitly big. What is infinite minus one? or minus two? etc.
log(inf) + log(inf) + log(inf) + .....
Why is sed not recognizing \t as a tab?
...at will work for GNU echo, but not BSD echo. That is explained by The Open Group at http://pubs.opengroup.org/onlinepubs/9699919799/utilities/echo.html#tag_20_37_16 And this is an example of why trying to avoid bashisms usually fail.
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