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Difference between two dates in Python
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pd.date_range('2019-01-01', '2019-02-01').shape[0]
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Detecting 'stealth' web-crawlers
...firewall rules to block offenders. It included whitelists of IP addresses/ranges based on http://www.iplists.com/, which were then updated automatically as needed by checking claimed user-agent strings and, if the client claimed to be a legitimate spider but not on the whitelist, it performed DNS/r...
What is the difference between float and double?
...ision of 7 digits. While it may store values with very large or very small range (+/- 3.4 * 10^38 or * 10^-38), it has only 7 significant digits.
Type double, 64 bits long, has a bigger range (*10^+/-308) and 15 digits precision.
Type long double is nominally 80 bits, though a given compiler/OS pa...
What is TypeScript and why would I use it in place of JavaScript? [closed]
...t. One can spend more time coding and less time debugging.
There is a wide range of IDEs that have excellent support for TypeScript, like Visual Studio Code, WebStorm, Atom and Sublime.
Strict null checks
Runtime errors of the form cannot read property 'x' of undefined or undefined is not a function...
How to get a user's client IP address in ASP.NET?
...the server shouldn't be the ISP's address, as you say that would be a huge range. The address for a home user on broadband will be the address at their router, so every device inside the house will appear on the outside to be the same, but the router uses NAT to ensure that traffic is routed to each...
How do you match only valid roman numerals with a regular expression?
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Fortunately, the range of numbers is limited to 1..3999 or thereabouts. Therefore, you can build up the regex piece-meal.
<opt-thousands-part><opt-hundreds-part><opt-tens-part><opt-units-part>
Each of those parts w...
How to calculate “time ago” in Java?
... him/her some love too.
This cleaned up version allows you to specify the range of time you might be interested in.
It also handles the " and " part a little differently. I often find when joining strings with a delimiter it's ofter easier to skip the complicated logic and just delete the last ...
What is the difference between String and string in C#?
... I personally prefer using "Int32", since it immediately shows the range of the value. Imagine if they upgraded the type of "int" on later higher-bit systems. 'int' in c is apparently seen as "the integer type that the target processor is most efficient working with", and defined as "at leas...
When to use generic methods and when to use wild-card?
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This is strange answer. It doesn't explain why you need to use ? at all. You could rewrite it as `public static <T1 extends Number, T2 extends Number> void copy(List<T1> dest, List<T2> src) and in this case it become ...
DefaultInlineConstraintResolver Error in WebAPI 2
...", typeof(MinRouteConstraint) },
{ "max", typeof(MaxRouteConstraint) },
{ "range", typeof(RangeRouteConstraint) },
// Regex-based constraints
{ "alpha", typeof(AlphaRouteConstraint) },
{ "regex", typeof(RegexRouteConstraint) }
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