余森彬 justdoit0823

javascript version

(function equality_or_assign(){
  a = 0;
  if(a = 1) console.log('assign', a);
  else console.log('equality');
})();

Coroutine

In wikipedia website, coroutine is defined as followed.

Coroutines are computer-program components that generalize subroutines for non-preemptive multitasking, by allowing multiple entry points for suspending and resuming execution at certain locations. Coroutines are well-suited for implementing familiar program components such as cooperative tasks, exceptions, event loops, iterators, infinite lists and pipes.

In early Python, coroutine is not natively supported, but only generator which supports yielding and resuming. Normal generators are just used to return value one by one, rather than yielding to different other generators as cooperative tasks. There are two main methods, send and throw resume generator's execution with specified value or exception. Afterwards in some frameworks, such as Tornado, the generator is used to implement framework level coroutine like tornado.gen.coroutine. However in ea


	# initialize string array

	FILES=(aaa bbb ccc)

	# retrive array's all elements
	for file in `${FILES[@]}`
	do
	echo $file


	#include "Python.h"


	PyTypeObject * create_type(const char * name){
	PyObject * args, * dict, * value;
	PyTypeObject * type;

	args = PyTuple_New(3);
	PyTuple_SetItem(args, 0, PyUnicode_FromString(name));


	# get processes with related threads
	ps -eLf \|grep "process name"

	# list all opened file descriptors in a process PID and under which thread
	lsof -aKp PID

	# trace syscalls in a process's main thread or other thread PID
	strace -p PID

	---

	- name: "common task"
	command: "{{item.cmd}}"
	with_items:
	- {cmd: "A", tag: ["projectA"]}
	- {cmd: "B", tag: ["projectB"]}
	when: item.tag \| intersect(current_tag)
	tags:
	- projectA

余森彬 justdoit0823

javascript version

Coroutine

Concurrency with Future

Introduction


	function extract_task_arguments(n){
	task_table = document.getElementById('tasks-table');
	for(var i = 1; i < n + 1; i++) console.log(task_table.childNodes[3].childNodes[i].childNodes[3].childNodes[0].data + "\t" + task_table.childNodes[3].childNodes[i].childNodes[4].childNodes[0].data)
	}


	lsof -aK -p pid


	rewrite url prefix

	rewrite /url_prefix(.*) /$1 break;