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Basic

Expression	How to Read This
$$a + b$$	a plus b
$$a - b$$	a minus b
$$a \times b$$	a times b
$$a / b$$	a over b
$$a > b$$	a is greater than b
$$a < b$$	a is less than b

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TypeScript 5.x to 6.0 Migration Guide

TypeScript 6.0 is a transition release bridging 5.9 and the forthcoming 7.0 (a native Go port). Most changes are new defaults and deprecations preparing for 7.0. Here is what you need to do:

Most projects need these tsconfig changes:

{
    "compilerOptions": {
        "types": ["node"],           // @types are no longer auto-discovered (see §1.6)

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PHP Cheatsheet

Including PHP in a file

<?php
    // place PHP code here
?>

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/*------------------------------------------
  Responsive Grid Media Queries - 1280, 1024, 768, 480
   1280-1024   - desktop (default grid)
   1024-768    - tablet landscape
   768-480     - tablet 
   480-less    - phone landscape & smaller
--------------------------------------------*/
@media all and (min-width: 1024px) and (max-width: 1280px) { }
 
@media all and (min-width: 768px) and (max-width: 1024px) { }

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📄 Headings

H1

H2

H3

H4

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╓─────[ box drawing cheat sheet ]
╙────────────────────────────────────── ─ ─ 


─	━	│	┃	┄	┅	┆	┇	┈	┉	┊	┋	┌	┍	┎	┏

┐	┑	┒	┓	└	┕	┖	┗	┘	┙	┚	┛	├	┝	┞	┟

┠	┡	┢	┣	┤	┥	┦	┧	┨	┩	┪	┫	┬	┭	┮	┯

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Provider	IPv4	IPv6	DNS Over HTTPS	DNSSEC
CleanBrowsing	185.228.168.9 185.228.169.9	2a0d:2a00:1::2 2a0d:2a00:2::2	https://doh.cleanbrowsing.org/doh/security-filter/	Yes
Cloudflare	1.1.1.1 1.0.0.1	2606:4700:4700::1111 2606:4700:4700::1001	https://1.1.1.1/dns-query	Yes
Google DNS	8.8.8.8 8.8.4.4	2001:4860:4860::8888 2001:4860:4860::8844	https://dns.google.com/resolve	Yes
Hurricane Electric	74.82.42.42	2001:470:20::2
Omnispring	208.111.1.1 208.111.1.2			Yes
[Private Internet Access](https://helpdesk.privateinternetaccess.com/hc/en-us/articles/219460397-How-to-change-DNS-settings

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javascript:(function(){
  allowCopyAndPaste = function(e){
  e.stopImmediatePropagation();
  return true;
  };
  document.addEventListener('copy', allowCopyAndPaste, true);
  document.addEventListener('paste', allowCopyAndPaste, true);
  document.addEventListener('onpaste', allowCopyAndPaste, true);
})(); 

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Unicode Character Look-Alikes

Original Letter	Look-Alike(s)
a	а ạ ą ä à á ą
c	с ƈ ċ
d	ԁ ɗ
e	е ẹ ė é è
g	ġ
h	һ

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[
{
"name": "Afghanistan",
"dial_code": "+93",
"code": "AF"
},
{
"name": "Aland Islands",
"dial_code": "+358",
"code": "AX"