prashant1k99

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MongoDB Cheat Sheet

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/**
 * Encodes the string using base64.
 * @param {string|number} str - The string to encode.
 * @returns {string} The base64-encoded string.
 */
function base64encode(str) {
  if (typeof str !== 'string') {
    if (typeof str === 'number') {
      str = str.toString();
    } else {

prashant1k99

FWIW: I didn't produce the content presented here (the outline from Edmond Lau's book). I've just copy-pasted it from somewhere over the Internet, but I cannot remember what exactly the original source is. I was also not able to find the author's name, so I cannot give him/her the proper credits.

---

Effective Engineer - Notes

• By Edmond Lau
• Highly Recommended 👍
• http://www.theeffectiveengineer.com/

What's an Effective Engineer?

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clean-code-javascript

Table of Contents

1. Introduction
2. Variables
3. Functions
4. Objects and Data Structures
5. Classes
6. SOLID

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Copied from http://code.lancepollard.com/complete-list-of-html-meta-tags/

Basic HTML Meta Tags

<meta name="keywords" content="your, tags"/>
<meta name="description" content="150 words"/>
<meta name="subject" content="your website's subject">
<meta name="copyright"content="company name">
<meta name="language" content="ES">

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//RegExp for URL validation - ^(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.]+$
let exp = ^(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.]+$;
function testInfo(phoneInput) {  
  var OK = exp.exec(phoneInput.value);  
  if (!OK)  
    window.alert(phoneInput.value + ' isn\'t a phone number with area code!');  
  else
    window.alert('Thanks, your phone number is ' + OK[0]);  
} 

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async function f() {
  return 1;
}

f().then(alert); // 1

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var promise = new Promise(function(resolve, reject) { 
	throw new Error('Some error has occured') 
}) 

promise 
	.then(function(successMessage) { 
		console.log(successMessage); 
	}) 
	.catch(function(errorMessage) { 
	//error handler function is invoked 

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/* Gist Embed - Dark Theme Styling - Thanks to MattD */
  
/* Body */
.gist-data tbody { background-color: Black; }

/* Line Numbers */
.gist-data tbody td:nth-of-type(1) {
  color: #2B91AF !important;
}