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How can I check if a string represents an int, without using try/except?
...isdigit()
True
it won't work with '16.0' format, which is similar to int casting in this sense.
edit:
def check_int(s):
if s[0] in ('-', '+'):
return s[1:].isdigit()
return s.isdigit()
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Updating packages in Emacs
... type package-list-packages, which will take you to the *Packages* buffer (and also update the list of packages), and then type U x.
package-refresh-contents unconditionally tries to download a package list from all repos you've added to package-archives; package-archive-contents is non nil if yo...
Difference between DateTime and Time in Ruby
What's the difference between DateTime and Time classes in Ruby and what factors would cause me to choose one or the other?
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Framework vs. Toolkit vs. Library [duplicate]
What is the difference between a Framework, a Toolkit and a Library?
12 Answers
12
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Quickest way to convert a base 10 number to any base in .NET?
...ToStringFast(int value, char[] baseChars)
{
// 32 is the worst cast buffer size for base 2 and int.MaxValue
int i = 32;
char[] buffer = new char[i];
int targetBase= baseChars.Length;
do
{
buffer[--i] = baseChars[value % targetBase];
...
Are the shift operators () arithmetic or logical in C?
...try to perform my bit shifts using unsigned values, even if it means using casts to get there.
– Michael Burr
Apr 15 '15 at 7:11
2
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How exactly does CMake work?
...
The secret is that you don't have to understand what the generated files do.
CMake introduces a lot of complexity into the build system, most of which only pays off if you use it for building complex software projects.
The good news is that CMake does a good job of k...
C++ Tuple vs Struct
...ayout is implementation defined so not compatible (and thus you should not cast between either representation) and in general I would expect no difference performance-wise (at least in Release) thanks to the inlining of get<N>.
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JavaScript OOP in NodeJS: how?
...4);
console.log(gExampleSubClass.publicVar);
console.log(gExampleSubClass.CAST("ExampleClass").publicVar);
The code is pure javascript, no transpiling. The example is taken from a number of examples from the official documentation.
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What's the difference between UTF-8 and UTF-8 without BOM?
What's different between UTF-8 and UTF-8 without a BOM ? Which is better?
21 Answers
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