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Test if string is a number in Ruby on Rails
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\Z allows to have \n at the end of the string, so "123\n" will pass validation, regardless that it's not fully numeric. But if you use \z then it will be more correct regexp: /\A\d+\z/
– SunnyMagadan
Aug 14 '17 at 9:14
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How do I restore a missing IIS Express SSL Certificate?
...slcert ipport=0.0.0.0:44300 certhash=your_cert_hash_with_no_spaces appid=
{123a1111-2222-3333-4444-bbbbcccdddee}
The Guid in the above command can be replaced with one that you generate. It does not correspond to any existing IIS Express value.
For further reference see Handling URL Binding Failur...
Why implement interface explicitly?
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Michael BMichael B
7,21233 gold badges2424 silver badges5252 bronze badges
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Where are Docker images stored on the host machine?
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123
this was the old way of doing, now it has changed. Disregard this answer as of 2019
In the sp...
How should I pass multiple parameters to an ASP.Net Web API GET?
...GET',
data: { system : 'My System',
searchString: '123' },
dataType: 'json',
success: function (data) {
$.each(data, function (index, v) {
alert(index + ': ' + v.name);
});
},
statusCode: ...
How to measure elapsed time in Python?
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123
(For performance measurement, time.clock() is actually preferred, since it can't be interfered with if the system clock gets messed with, ...
Websocket API to replace REST API?
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98
Not to say that the other answers here don't have merit, they make some good points. But I'm go...
What is the advantage of using heredoc in PHP? [closed]
...ng</li>
<li>$whatever</li>
<li>$testing123</li>
</ul>
</div>
HTML;
// Sometime later
echo $html;
It is easy to read and easy to maintain.
The alternative is echoing quoted strings, which end up containing escaped quotes and IDEs aren't ...
What are some uses of template template parameters?
...hould not care what's their "types" or meaning, following works well in C++98: template<template<class, class> class C, class T, class U> void f(C<T, U> &v)
– pfalcon
Jan 14 '13 at 2:13
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Pad a number with leading zeros in JavaScript [duplicate]
...re.
Example usage:
pad(10, 4); // 0010
pad(9, 4); // 0009
pad(123, 4); // 0123
pad(10, 4, '-'); // --10
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