avtarnanrey’s gists

avtarnanrey / html-to-pdf.js

Last active January 21, 2025 16:09

html2canvas or html-to-image or modern-screenshot with jsToPDF

	download(): void {
	const printContent = document.querySelector('.card-body');
	if (printContent) {
	// Replace below line with library function, whichever you're using.
	domToPng(printContent, { quality: 1, scale: 2 }) // Scale set to 2 for better quality in PDF
	.then((canvas) => {
	const imgData = canvas;
	const pdf = new jsPDF('p', 'mm', 'letter'); // Portrait, mm, Letter size

	const imgWidth = 86;

avtarnanrey / apache_config.conf

Last active May 6, 2020 16:08

Common apache config to redirect http to https and setting SSL certificate and allow .httaccess settings

	<VirtualHost *:80>
	Redirect "/" "https://your_website.com"
	</VirtualHost>
	<VirtualHost *:443>
	ServerAdmin [email protected]
	ServerName your_website.com
	ServerAlias www.your_website.com
	DocumentRoot /var/www/your_website.com

	ErrorLog ${APACHE_LOG_DIR}/website_error.log

avtarnanrey / observer.js

Last active March 10, 2020 03:17

JavaScript Patterns: Observer Pattern

	// ES5 example

	function Subject () {
	this.observers = []; // Array of observer functions
	}

	Subject.prototype = {
	subscribe: function (fn) {
	this.observers.push(fn)
	},

avtarnanrey / git-bash

Created March 2, 2020 17:28

Clean local branches merged or obsolete

	// To delete all merged branches except master and dev
	git branch --merged \| grep -v '\*\\|master\\|dev' \| xargs -n 1 git branch -d

	// To delete all branches except master and dev:
	git branch \| grep -v '\*\\|master\\|dev' \| xargs -n 1 git branch -D

avtarnanrey / regex.js

Created February 24, 2020 15:05

Regular expressions & common form helper methods

	// Phone Number format 000-000-0000
	export const formattedPhoneRegex = /^[0-9]\d{2}-\d{3}-\d{4}$/i;

	// Email
	export const emailRegex = /^[a-z0-9`!#\$%&\\+\/=\?\^\'\-_]+((\.)+[a-z0-9`!#\$%&\\+\/=\?\^\'\-_]+)@([a-z0-9]+([\-][a-z0-9]))+([\.]([a-z0-9]+([\-][a-z0-9])*)+)+$/i;

	// No Special Chars
	export const noSpecialCharRegex = /^[a-zA-Z0-9]+$/i;

	// Auto format the phone number

avtarnanrey / cloudSettings

Created February 24, 2020 12:47

Visual Studio Code Settings Sync Gist

{"lastUpload":"2020-02-24T12:47:51.099Z","extensionVersion":"v3.4.3"}

avtarnanrey / dom_observer.js

Created October 10, 2019 20:12

Wait for element to be added into DOM then execute JavaScript

	var observer = new MutationObserver(function (mutations) {
	mutations.forEach(function (mutation) {
	if (!mutation.addedNodes) return

	for (var i = 0; i < mutation.addedNodes.length; i++) {
	var item = Array.prototype.slice.call(mutation.addedNodes).find(function (i) { return i.id == "selector" });
	if (item) {
	// Do your stuff here
	observer.disconnect();
	}

avtarnanrey / ajax.js

Created November 28, 2017 20:47

AJAX calls using vanilla JavaScript and jQuery

	(function(){

	var httpRequest, root;

	root = 'https://jsonplaceholder.typicode.com'; // URL for JSON data

	document.querySelector('.ajaxButton').addEventListener('click', makeRequest);

	function makeRequest() {
	httpRequest = new XMLHttpRequest();

avtarnanrey / smoothScroll.js

Created February 7, 2017 19:12

Simple jQuery script for smooth page scroll on anchor tags.

	// Smooth Scroll
	jQuery(function() {
	jQuery('a[href*="#"]:not([href="#"])').click(function() {
	if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'') && location.hostname == this.hostname) {
	var target = jQuery(this.hash);
	target = target.length ? target : jQuery('[name=' + this.hash.slice(1) +']');
	if (target.length) {
	jQuery('html, body').animate({
	scrollTop: target.offset().top
	}, 1000);

avtarnanrey / hide_show_on_scroll.js

Created November 26, 2016 15:19

Hide / Show button on Scroll Function

	var position, direction, previous;

	$(window).scroll(function(){
	if( $(this).scrollTop() >= position ){
	direction = 'down';
	if(direction != previous){
	$('.menu-toggle').addClass('hide');
	previous = direction;
	}
	} else {

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