Uncaught TypeError: Cannot assign to read only property 'background' of object '#<Object>'

Uncaught TypeError: Cannot assign to read only property 'background' of object '#<Object>'

my project is babel7.

my project is babel7.

render() {
  const {elementStyle, style } = this.props;
  return (
            <span style={Object.assign(elementStyle, style)}>{label} 

//Object.assign(elementStyle, style) --> error. but i correct Object.assign({}, elementStyle, style) is working. and why is not working?? i debuggered this code. at first is working but when reredering, this code is error... i don't know please help me.

Angular 9 Tutorial: Learn to Build a CRUD Angular App Quickly

What's new in Bootstrap 5 and when Bootstrap 5 release date?

Brave, Chrome, Firefox, Opera or Edge: Which is Better and Faster?

How to Build Progressive Web Apps (PWA) using Angular 9

What is new features in Javascript ES2020 ECMAScript 2020

URLs and Webpack in Reactjs

URLs and Webpack in Reactjs - I am still a newbie in ReactJS. I've been following series of tutorials and articles on the framework and decided to start putting what I've learnt so far into practice.

Learn ReactJS with Webpack 4, Babel 7, and Material Design

Quick and simple, fast guide on integrating ReactJS with Webpack, Babel and Material Design. This is a short tutorial which will get your ReactJS app running with Webpack and Babel.

Setting up Reactjs using Webpack 4 and Babel 7

In this tutorial we will be setting up our very own reactjs from scratch using webpack and babel, so grab your pen and paper lets spin the learning wheel.