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@Rich-Harris
Rich-Harris / footgun.md
Last active November 1, 2025 18:30
Top-level `await` is a footgun

Edit — February 2019

This gist had a far larger impact than I imagined it would, and apparently people are still finding it, so a quick update:

  • TC39 is currently moving forward with a slightly different version of TLA, referred to as 'variant B', in which a module with TLA doesn't block sibling execution. This vastly reduces the danger of parallelizable work happening in serial and thereby delaying startup, which was the concern that motivated me to write this gist
  • In the wild, we're seeing (async main(){...}()) as a substitute for TLA. This completely eliminates the blocking problem (yay!) but it's less powerful, and harder to statically analyse (boo). In other words the lack of TLA is causing real problems
  • Therefore, a version of TLA that solves the original issue is a valuable addition to the language, and I'm in full support of the current proposal, which you can read here.

I'll leave the rest of this document unedited, for archaeological

@paulirish
paulirish / bling.js
Last active September 13, 2025 12:13
bling dot js
/* bling.js */
window.$ = document.querySelector.bind(document);
window.$$ = document.querySelectorAll.bind(document);
Node.prototype.on = window.on = function(name, fn) { this.addEventListener(name, fn); };
NodeList.prototype.__proto__ = Array.prototype;
NodeList.prototype.on = function(name, fn) { this.forEach((elem) => elem.on(name, fn)); };
@staltz
staltz / introrx.md
Last active October 26, 2025 03:06
The introduction to Reactive Programming you've been missing
@mycodeschool
mycodeschool / PreorderInorderPostorder_CPP.cpp
Last active May 3, 2025 17:50
Binary tree traversal: Preorder, Inorder, Postorder
/* Binary Tree Traversal - Preorder, Inorder, Postorder */
#include<iostream>
using namespace std;
struct Node {
char data;
struct Node *left;
struct Node *right;
};
@endolith
endolith / Has weird right-to-left characters.txt
Last active September 16, 2025 20:20
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