Elijah Trillionz Elijah-trillionz

💭

hacking

I am a software developer. Hacking on native-json-db

Elijah-trillionz / exercises.py

Created November 5, 2021 09:46

calculate number of days between two dates

	# Write a Python program to calculate number of days between two dates.
	# (2014, 7, 2), (2014, 7, 11)
	import datetime as date


	def num_of_days(date_one, date_two):
	try:
	(year, month, day) = date_one
	new_date = date.datetime(year, month, day).timestamp()

Elijah-trillionz / range.js

Created October 26, 2021 18:35

Just like python range

	function range(start, end, step = 1) {
	const rangeOfNums = []
	if (step < 0) {
	for (let i = start; i >= end; i -= Math.abs(step)) {
	rangeOfNums.push(i);
	};
	} else {
	for (let i = start; i <= end; i += step) {
	rangeOfNums.push(i);
	};

Elijah-trillionz / arrays.js

Created October 26, 2021 18:34

Reversing javascript arrays without the reverse method

	// reverse an array that modifies the array
	function reverseArrayInPlace(arr) {
	let length = arr.length;
	for (let i = length - 1; i >= 0; i--) {
	arr.push(arr[i]);
	}

	arr.splice(0, length);
	return arr;
	}

Elijah-trillionz / lists.js

Created October 26, 2021 18:31

JavaScript lists

	// convert from array to list with
	function arrayToList(arr) {
	// list format: value 1, rest => value 2, rest => value 3, rest => null
	let list;
	for (let i = arr.length; i >= 0; i--) {
	list = {
	value: arr[i],
	rest: i >= arr.length - 1 ? null : list,
	};
	}

Elijah-trillionz / file_handling.py

Created September 18, 2021 18:31

Handling files in php

	# TODO: python delete file and folders
	import os

	# create file
	html = open('demo.html', 'x')
	html.close()

	# write to new file
	html = open('demo.html', 'w')
	html.write('<html>\n<body>\n<p>\nHello World</p>\n</body>\n</html>')

Elijah-trillionz / reverse.js

Created June 22, 2021 20:53

Reverse a number mathematically

	// reversing a number
	let givenNum = 4552;
	let numInRev = 0;

	while (givenNum > 0) {
	const lastDigit = Math.floor(givenNum % 10);
	numInRev = numInRev * 10 + lastDigit;
	givenNum = Math.floor(givenNum / 10);
	}

Elijah-trillionz / reverse.js

Created June 15, 2021 20:05

Reverse a number in JavaScript

	function reverseNumber(givenNum) {
	const numInArr = givenNum.toString().split('');
	numInArr.reverse();
	return +numInArr.join('');
	}

Elijah-trillionz / palindrome.js

Created June 15, 2021 20:04

Palindrome Checker LVL 1

	function checkForPalindrome(phrase) {
	const phraseInArr = phrase.split('');

	const noWhiteSpace = phraseInArr.filter((phrase) => {
	return phrase !== ' '; // you can use regex to ignore characters
	});

	const toUseLength = Math.floor(noWhiteSpace.length / 2);

	const firstSet = noWhiteSpace.slice(0, toUseLength).join('').toLowerCase();

Elijah-trillionz / cookie.js

Last active May 22, 2021 13:54

Get Data From Cookies with one function

Elijah-trillionz / spreadArray.js

Last active July 1, 2021 09:16

Spread Operators with Arrays

	// spread operators allows any iterable to be expanded
	// it can serve as a means of adding arrays (concatenation)
	const arr1 = [1, 3, 4]
	const arr2 = [10, 13, 5]
	const bothArr = [...arr1, ...arr2]

	// you can use this to update an array with
	// another array without leading to a multidimensional array
	let arr1 = [1, 3, 4]
	const arr2 = [10, 13, 5]

	const getDataFromCookie = (data) => {
	const allCookies = document.cookie.split(';');

	const cookie = allCookies.filter((cookie) => {
	return cookie.indexOf(data) !== -1;
	});

	return cookie.length >= 1 && cookie[0].trim().split('=')[1];
	};