digital bootcamps in gauteng
var player = {score: 1, name: 'Jeff'};
player.score = 2;
// Now player is {score: 2, name: 'Jeff'}digital bootcamps in gauteng
var player = {score: 1, name: 'Jeff'};
player.score = 2;
// Now player is {score: 2, name: 'Jeff'}digital bootcamps in gauteng
class CounterButton extends React.Component {
constructor(props) {
super(props);
this.state = {count: 1};
}
shouldComponentUpdate(nextProps, nextState) {
if (this.props.color !== nextProps.color) {
return true;
}
if (this.state.count !== nextState.count) {
return true;
}
return false;
}
render() {
return (
<button
color={this.props.color}
onClick={() => this.setState(state => ({count: state.count + 1}))}>
Count: {this.state.count}
</button>
);
}
}digital bootcamps in gauteng
render() {
const status = 'Next player: ' + (this.state.xIsNext ? 'X' : 'O');
return (
// the rest has not changeddigital bootcamps in gauteng
function Square(props) {
return (
<button className="square" onClick={props.onClick}>
{props.value}
</button>
);
}digital bootcamps in gauteng
function calculateWinner(squares) {
const lines = [
[0, 1, 2],
[3, 4, 5],
[6, 7, 8],
[0, 3, 6],
[1, 4, 7],
[2, 5, 8],
[0, 4, 8],
[2, 4, 6],
];
for (let i = 0; i < lines.length; i++) {
const [a, b, c] = lines[i];
if (squares[a] && squares[a] === squares[b] && squares[a] === squares[c]) {
return squares[a];
}
}
return null;
}Copyright © 2021 Codeinu
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