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How to do Base64 encoding in node.js?
...
'base64' - Base64 string encoding.
'binary' - A way of encoding raw
binary data into strings by using only the first 8 bits of each
character. This encoding method is deprecated and should be avoided in
favor of Buffer objects where possible. This encoding will be removed
in futur...
How to upgrade Git to latest version on macOS?
...all Homebrew if you didn’t have
$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Or update if you already have
$ brew update && brew upgrade
Install Git with Homebrew
$ brew install git
Symbolic link
$ brew link --force git
Quit terminal ...
An efficient compression algorithm for short text strings [closed]
...ay (e.g. all URLs, all C programs, all StackOverflow posts, all ASCII-art drawings) then certain substrings will appear in most or all of the input files.
Every compression algorithm will save space if the same substring is repeated multiple times in one input file (e.g. "the" in English text or "...
(this == null) in C#!
...
The raw decompilation (Reflector with no optimizations) of the Debug mode binary is:
private class Derived : Program.Base
{
// Methods
public Derived()
{
base..ctor(new Func<string>(Program.Derived.<...
How do I count the number of occurrences of a char in a String?
...ring, I get a difference of 6049 ns vs 26,739 ns (averaged over 100runs). Raw numbers are huge difference, but percetage wise...it adds up. Avoid the memory allocations - use a loop!
– Ben
Nov 18 '14 at 15:41
...
Set up adb on Mac OS X
...e automatic updates.
Install homebrew
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
Install adb
brew cask install android-platform-tools
Start using adb
adb devices
Option 2 - Manually (just the platform tools)
This is the easiest way t...
How do I create test and train samples from one dataframe with pandas?
...
Better solution. scikit learn doesn't take raw data frames, rather it expects arrays.
– Cybernetic
Nov 8 '19 at 20:21
2
...
When do we have to use copy constructors?
... proper way to deal with the situation is to use proper classes instead of raw pointers.
class Righteous
{
public:
private:
std::unique_ptr<Foo> mFoo;
std::unique_ptr<Bar> mBar;
};
With the same constructor implementation (or actually, using make_unique), I now have exception safe...
How to read a file in reverse order?
...line[::-1]
if __name__ == '__main__':
for qline in readlines_reverse(raw_input()):
print qline
Since the file is read character by character in reverse order, it will work even on very large files, as long as individual lines fit into memory.
...
C fopen vs open
...nter directly.
There are several advantages to using FILE-objects rather raw file descriptors, which includes greater ease of usage but also other technical advantages such as built-in buffering. Especially the buffering generally results in a sizeable performance advantage.
...