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Simple regular expression for a decimal with a precision of 2
...\d{1,2})?$
To match numbers without a leading digit before the decimal (.12) and whole numbers having a trailing period (12.) while excluding input of a single period (.), try the following:
^(\d+(\.\d{0,2})?|\.?\d{1,2})$
Added
Wrapped the fractional portion in ()? to make it optional. Be a...
Golang: How to pad a number with zeros when printing?
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The fmt package can do this for you:
fmt.Printf("|%06d|%6d|\n", 12, 345)
Notice the 0 in %06d, that will make it a width of 6 and pad it with zeros. The second one will pad with spaces.
You can see it in action here: http://play.golang.org/p/cinDspMccp
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Convert numpy array to tuple
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answered Apr 4 '12 at 17:35
Niklas B.Niklas B.
80.9k1111 gold badges173173 silver badges210210 bronze badges
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Find number of months between two Dates in Ruby on Rails
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12 Answers
12
Active
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Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
...to a sort of que?
– Eric R.
Oct 21 '12 at 17:39
337
This solution isn't just outside the box; it ...
How do I raise the same Exception with a custom message in Python?
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12 Answers
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Extract a number from a string (JavaScript)
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answered Apr 4 '12 at 1:16
georggeorg
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In jQuery, how do I get the value of a radio button when they all have the same name?
...your code, jQuery just looks for the first instance of an input with name q12_3, which in this case has a value of 1. You want an input with name q12_3 that is :checked.
$("#submit").click(() => {
const val = $('input[name=q12_3]:checked').val();
alert(val);
});
<script src="https...
how to solve “ruby installation is missing psych” error?
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In my case
rvm pkg install libyaml
and
rvm reinstall ruby-1.9.3-p125
solved the problem.
For people using Ubuntu, make sure that libtool is installed prior to the steps above:
sudo apt-get install libtool
For macOS users (with homebrew):
rm -rf /usr/local/lib/ruby/gems/ && b...
When to use the brace-enclosed initializer?
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answered Apr 2 '12 at 13:38
celtschkceltschk
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