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Improve Jqhtml_Integration.js documentation with hydration system explanation Add jqhtml-laravel integration packages for traditional Laravel projects 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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countBy()
The countBy method counts the occurences of values in the collection. By default, the method counts the occurrences of every element:
const collection = collect([1, 2, 2, 2, 3]);
const counted = collection.countBy();
counted.all();
// {
// 1: 1,
// 2: 3,
// 3: 1,
// }
However, you pass a callback to the countBy method to count all items by a custom value:
const collection = collect([
'mohamed.salah@gmail.com',
'darwin.nunez@yahoo.com',
'roberto.firmino@gmail.com',
]);
const counted = collection.countBy(email => email.split('@')[1]);
counted.all();
// {
// 'gmail.com': 2,
// 'yahoo.com': 1,
// }