Have you worked with native JavaScript, or mainly with frameworks?

Worked with both native JavaScript and frameworks. Native JS is important for understanding the fundamentals of the language, working with DOM, events, and asynchrony without additional abstractions.

Frameworks (React, Vue, Angular) accelerate development by providing ready-made structures and patterns, but knowledge of native JavaScript helps to better understand what happens "under the hood".

For example, when working with native JS, you can write simple code to change the content of an element:

const button = document.getElementById('myButton');
button.addEventListener('click', () => {
  const content = document.getElementById('content');
  content.textContent = 'New text';
});

This helps to better understand the mechanisms that frameworks abstract.