immutability helper
import React, { Component } from "react";
import "./styles.css";
import update from "immutability-helper";
class App extends Component {
state = {
pizzas: {
margherita: {
toppings: ["tomato sauce", "mozzarella cheese"],
prices: [{ small: "5.00" }, { medium: "6.00" }, { large: "7.00" }]
},
prosciutto: {
toppings: ["tomato sauce", "mozzarella cheese", "ham"],
prices: {
small: "6.50",
medium: "7.50",
large: "8.50"
}
}
},
person: {
name: "ssrk bhai"
}
};
sayHello = () => {
this.setState(
{
pizzas: update(this.state.pizzas, {
margherita: { prices: { $push: [{ ghana: 45 }] } }
})
},
() => {
console.log(this.state);
}
);
};
render() {
return (
<div className="App">
<h1>Hello CodeSandbox</h1>
<h2>Start editing to see some magic happen!</h2>
<button onClick={this.sayHello}>Click me!</button>
</div>
);
}
}
export default App;
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