Learning react concurrently with JavaScript

Dear Campers,
I’m a little lost. I have completed JavaScript basics and I want to get a software development job or start freelancing in the shortest time possible. I see a lot of job listings for react, (WordPress and php) developer position. I’m a little reluctant to start learning WordPress and php because I don’t want to end up getting confused since I have already started JS. Are react and JavaScript complementary? Does learning react reinforce my knowledge of JS and vice versa? At least I am confident that I know the basics of JavaScript.

Reactjs is a javascript library for building user interface component, the basics of javascript are not enough to master reactjs.
You need to move to ES6 before you enjoy learning reactjs , it is heigh demande skills in front end web development market.