Learning Vanilla Javascript in 2020 & others part 1

I believe learning and knowing vanilla JavaScript is essential for every developer who wants to work with it. But creating real web apps for clients and enterprise-level apps without frameworks is total stupidity. Once it was jQuery, now, it is Vue or React or etc. It depends on the developer to choose a framework since they are all great.

Imagine this:

const myText = document.getElementById('myText');
const result = document.getElementById('result');

const callback = function() {
  result.innerHTML = myText.value;
};

myText.addEventListener('keyup', callback);
myText.addEventListener('keydown', callback);

This was a vanilla JavaScript code to get a value from the input and write it done simultaneously (almost) in the result span.

This one is the jQuery flavoured one:

const myText = $('input#myText');

const myText.on('keyup keydown', function(){
    $('span#result').html(const myText.val());
});

And this is Vue styled one:

<template>
    <input type="text" v-model="myText" />
    <span>{{ myText }}</span>
</template>

<script>
export default {
    data() {
        myText: ''
    }
}
</script>

You tell me which one looks easier?
Of course the last one.

So these technologies make a developer's life much easier.

I see no purpose in learning vanilla JavaScript to use in production but learning it is essential.

So if you meant to learn it to overcome the frameworks I respectfully disagree, but if you meant learning the frameworks is ruining people's understanding of JavaScript since they don't exactly know what is going on we'll I couldn't agree more.

frameworks come and go, vanilla js will stay there forever.
If you dont know vanilla js theres no point in jumping into a framework, frameworks like angular, vue, react are built with javascript, what it changes is the architecture that makes the code more organized and more easy to make apps and websites(but only if you understand vanilla js).