What kind of beast is .speed?

Question

JavaScript

Faced with such a piece

...
class UpdatingComponentHOC extends React.Component {
    constructor(props) {
      super(props);
      this.state = {
        length: LENGTH,
        data: this.props.data.slice(0, LENGTH),
      };
      this.speed = 1000;
....

What is .speed? How it works? In general, this piece of code updates the data, on a click event it adds some of its own data to the existing data that is somehow generated, I want to understand the process.

Answer 1

setInterval(this.func, this.speed)
Judging by your code, speedthe interfal between executionfunc