함수형 setState

2020-12-17 16:23:53 +09:00
parent 3c513b6401
commit aafc454629
1 changed files with 4 additions and 3 deletions
--- a/react_webgame/main/index.html
+++ b/react_webgame/main/index.html
@@ -24,12 +24,13 @@
 				onSubmit = (e) => {
 					e.preventDefault();
 					if(parseInt(this.state.value) === this.state.first * this.state.second) {
-						this.setState({
-							result: this.state.first + ' * ' + this.state.second 
-									+ ' = ' + this.state.first * this.state.second + ' 정답',
+						this.setState((prevState) => {
+							return {
+								result: '정답 : ' + prevState.value,
 							first: Math.ceil(Math.random() * 9),
 							second: Math.ceil(Math.random() * 9),
 							value: '',
+							}
 						});
 					} else {
 						this.setState({