sPoNgEbOb cAsE bookmarklet

spongebob.js

javascript:(function() {
    let selection = window.getSelection();
    if (selection.toString()) {
        const spongebobText = selection.toString()
            .split('')
            .map((char, index) => index % 2 === 0 ? char.toLowerCase() : char.toUpperCase())
            .join('');
        
        document.execCommand('insertText', false, spongebobText);
    } else {
        alert('pLeAsE SeLeCt sOmE TeXt fIrSt!');
    }
})();

// Note that document.execCommand is deprecated and no guarantees it'll keep working in future versions of Chromium-based browsers
// As of: 2024-11-03 is still supported in latest version Chrome, Brave and Edge