jialin.huang jialinhuang00

Element(like div)

clientHeight = padding + height(沒scrollbar)

offsetHeight = padding + border + height

scrollHeight >= clientHeight

clientHeight = padding + height

	# variables
	NEXT = npx next
	GIT = git

	# defalt
	.PHONY: all
	all:
	@echo "Available targets:"
	@echo " make out - Prepare for publishing, a.k.a next build"
	@echo " make commit \"Your commit message\" - Commit changes"

	import socket

	serversocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

	host = socket.gethostbyname('')
	port = 5001
	serversocket.bind((host, port))
	serversocket.listen()

	while True:

	var alpha = 'dajvgiasdrrrrkq;wrklrq';

	var Letters = new Map();

	// has set get methods
	alpha.split('').map(letter => {
	if (!Letters.has(letter)) Letters.set(letter, 1);
	else Letters.set(letter, Letters.get(letter) + 1);
	});
	// keys() values() and entries() contain both.

	var arr = ['a', 'b', 'c', 'd', 'e'];
	var eArr = arr.entries();

	console.log(eArr.next()); // { value: [ 0, 'a' ], done: false }
	console.log(eArr.next().value); // [1, 'b']

	// 剩下c,d,e還沒跑出來，所以...
	for (let e of eArr) {
	console.log(e);
	}


	※ NaN === NaN --> false
	※ isNaN(NaN) --> true
	※ typeof NaN --> 'number'
	※ isNaN(x)、isNaN(x - 0)、isNaN(Number(x))、Number.isNaN(x - 0)、Number.isNaN(Number(x))都是一樣的東西

	一、false狀況下：

	1. 的確是數字

	/*-----------------------------------------------------------------------------
	the reference is from UdemyCourse: LearningDataStructuresinJavascriptFromScratch
	-----------------------------------------------------------------------------*/

	function HashTable(size) {
	this.buckets = Array(size);
	this.numBuckets = this.buckets.length;
	}

	function HashNode(key, value, next) {