google-docs-latex-shortcuts.js

// How to get Math Autocorrect on Google Docs
// Type shortcuts inspired by LaTeX anywhere in Google Docs
// Script by Jonah Lawrence (c) 2021
//
// Steps:
// 1. Open a Google Doc
// 2. Click the Tools tab, then Preferences
// 3. Switch to the Substitutions Tab
// 4. Paste this script in the Console

(async function () {
    const response = await fetch("https://cdn.jsdelivr.net/gh/DenverCoder1/LaTeX-Gboard-Dictionary/dictionary.txt");
    const text = await response.text();
    const lines = text.split("\n").slice(1);
    lines.forEach((line) => {
        let [shortcut, symbol] = line.split("\t");
        const replaceEl = document.querySelector("input[title='New substitution. Replace']");
        const withEl = document.querySelector("input[title='With']");
        replaceEl.value = shortcut;
        withEl.value = symbol;
        withEl.dispatchEvent(new Event('focus'));
        withEl.parentElement.dispatchEvent(new KeyboardEvent('keyup'));
    });
})();