YC linychuo

A half-hour to learn Zig

This is inspired by https://fasterthanli.me/blog/2020/a-half-hour-to-learn-rust/

Basics

the command zig run my_code.zig will compile and immediately run your Zig program. Each of these cells contains a zig program that you can try to run (some of them contain compile-time errors that you can comment out to play with)

MSYS2 is a minimalist linux/unix shell environment for Windows.

Quote: "A modern replacement for MSYS bringing recent versions of the GNU toolchains, Git and other common Unix command line tools to the Windows platform"

1. Install

Do all the steps listed here: http://msys2.github.io/
(troubleshooting guide here: https://github.com/msys2/msys2/wiki/MSYS2-installation )

2. Set up proxies

Title

<Additional information about your API call. Try to use verbs that match both request type (fetching vs modifying) and plurality (one vs multiple).>

URL

<The URL Structure (path only, no root url)>
Method:

	# delete_duplicate_file.py
	# Python 3.8.6

	"""
	Given a folder, walk through all files within the folder and subfolders
	and delete all file that are duplicates so you have only one copy of every file
	The md5 checcksum for each file will determine the duplicates
	"""

	import os

	pub trait Visitable {
	fn accept<V: Visitor>(&self, visitor: &mut V) -> V::Result;
	}

	pub trait Visitor {
	type Result;

	fn visit_num(&mut self, num: &Num) -> Self::Result;

	fn visit_add<T, U>(&mut self, add: &Add<T, U>) -> Self::Result

	ssh-keygen -t rsa -b 4096 -e SHA512 -f jwtRS512.key
	# Don't add passphrase
	openssl rsa -in jwtRS512.key -pubout -outform PEM -out jwtRS512.key.pub
	cat jwtRS512.key
	cat jwtRS512.key.pub

	--
	-- splitting as columns
	--
	select regexp_substr('a-b-c', '[^-]+', 1, 1) as grupo_1
	,regexp_substr('a-b-c', '[^-]+', 1, 2) as grupo_2
	,regexp_substr('a-b-c', '[^-]+', 1, 3) as grupo_3
	from dual;

	-- result:
	-- a b c

	var uniqueArray = function(arrArg) {
	return arrArg.filter(function(elem, pos,arr) {
	return arr.indexOf(elem) == pos;
	});
	};

	var uniqEs6 = (arrArg) => {
	return arrArg.filter((elem, pos, arr) => {
	return arr.indexOf(elem) == pos;
	});

	package demo;

	import static java.lang.reflect.Modifier.*;

	import java.util.Arrays;
	import java.util.Set;

	import org.springframework.beans.BeansException;
	import org.springframework.beans.factory.annotation.Value;
	import org.springframework.beans.factory.config.BeanExpressionResolver;

	building '_imagingft' extension

	gcc -pthread -fno-strict-aliasing -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector --param=ssp-buffer-size=4 -DNDEBUG -march=x86-64 -mtune=generic -O2 -pipe -fstack-protecto
	r --param=ssp-buffer-size=4 -fPIC -I/usr/include/freetype2 -IlibImaging -I/home/cafeerp/instances/cafeerp_ocb7/include -I/usr/local/include -I/usr/include -I/usr/include/python2.7 -
	c _imagingft.c -o build/temp.linux-x86_64-2.7/_imagingft.o

	_imagingft.c:73:31: fatal error: freetype/fterrors.h: No such file or directory

	#include <freetype/fterrors.h>