1 <html>
2
3
4
5 <head>
6
7 <meta charset="utf-8">
8
9 <title>学习React！！</title>
10
11 </head>
12
13
14
15 <body>
16
17 <div id="app"></div>
18
19 <script src="bower_components/react/react.js"></script>
20
21 <script src="bower_components/react/JSXTransformer.js"></script>
22
23 <script type="text/jsx">
24
25 var MessageBox = React.createClass({
26
27 alertMe: function(){
28
29 alert('你刚才点了我一下。。。。');
30
31 },
32
33 render:function(){
34
35 return ( <h1 onClick={this.alertMe}>你好世界！！！</h1> )
36
37 }
38
39 });
40
41
42
43 React.render( <MessageBox/>,
44
45 document.getElementById('app'),
46
47 function(){
48
49 console.log('渲染完成啦！！');
50
51 }
52
53 )
54
55
56
57
58
59 </script>
60
61
62
63
64
65 </body>
66
67
68
69 </html>
70
71
72
73 <html>
74
75
76
77 <head>
78
79 <meta charset="utf-8">
80
81 <title>学习React！！</title>
82
83 </head>
84
85
86
87 <body>
88
89 <div id="app"></div>
90
91 <script src="bower_components/react/react.js"></script>
92
93 <script src="bower_components/react/JSXTransformer.js"></script>
94
95 <script type="text/jsx">
96
97 var MessageBox = React.createClass({
98
99 render:function(){
100
101 var submessages = [];
102
103 for(var ii=0; ii<10; ii++){
104
105 submessages.push(
106
107 <Submessage key={'subMsg'+ii}/>
108
109 )
110
111 }
112
113
114
115 return (
116
117 <div>
118
119 <h1>你好世界！！！</h1>
120
121 {submessages}
122
123 </div>
124
125 )
126
127 }
128
129 });
130
131
132
133 var Submessage = React.createClass({
134
135 render:function(){
136
137 return (
138
139 <div>
140
141 <h3>写代码很有意思</h3>
142
143 <Footer/>
144
145 </div>
146
147 )
148
149 }
150
151 });
152
153
154
155 var Footer = React.createClass({
156
157 render: function(){
158
159 return (
160
161 <small>因为我们在用代码创造</small>
162
163 )
164
165 }
166
167 })
168
169
170
171
172
173 React.render( <MessageBox/>,
174
175 document.getElementById('app'),
176
177 function(){
178
179 console.log('渲染完成啦！！');
180
181 }
182
183 )
184
185
186
187
188
189 </script>
190
191
192
193
194
195 </body>
196
197
198
199 </html>
200
201
202
203
204
205 <html>
206
207
208
209 <head>
210
211 <meta charset="utf-8">
212
213 <title>学习React！！</title>
214
215 </head>
216
217
218
219 <body>
220
221 <div id="app"></div>
222
223 <script src="bower_components/react/react.js"></script>
224
225 <script src="bower_components/react/JSXTransformer.js"></script>
226
227 <script type="text/jsx">
228
229 var MessageBox = React.createClass({
230
231 getInitialState:function(){
232
233 return {
234
235 isVisible: true,
236
237 titleMessage: '你好世界（来自state哦）',
238
239 }
240
241 },
242
243 render:function(){
244
245 var styleObj={
246
247 display: this.state.isVisible ? 'block' : 'none',
248
249 }
250
251
252
253 return (
254
255 <div>
256
257 <h1 style={styleObj}>{this.state.titleMessage}</h1>
258
259 <Submessage/>
260
261 </div>
262
263 )
264
265 }
266
267 });
268
269
270
271 var Submessage = React.createClass({
272
273 render:function(){
274
275 return (
276
277 <h3>写代码很有意思</h3>
278
279 )
280
281 }
282
283 });
284
285
286
287
288
289 var messageBox = React.render( <MessageBox/>,
290
291 document.getElementById('app'),
292
293 function(){
294
295 console.log('渲染完成啦！！');
296
297 }
298
299 )
300
301
302
303
304
305 </script>
306
307
308
309
310
311 </body>
312
313
314
315 </html>
316
317
318
319 <html>
320
321
322
323 <head>
324
325 <meta charset="utf-8">
326
327 <title>学习React！！</title>
328
329 </head>
330
331
332
333 <body>
334
335 <div id="app"></div>
336
337 <script src="bower_components/react/react.js"></script>
338
339 <script src="bower_components/react/JSXTransformer.js"></script>
340
341 <script type="text/jsx">
342
343 var ClickApp = React.createClass({
344
345 getInitialState:function(){
346
347 return {
348
349 clickCount: 0, }
350
351 },
352
353 handleClick: function(){
354
355 this.setState({
356
357 clickCount: this.state.clickCount + 1,
358
359 })
360
361 },
362
363 render: function(){
364
365 return (
366
367 <div>
368
369 <h2>点击下面按钮</h2>
370
371 <button onClick={this.handleClick}>点击我</button>
372
373 <p>你一共点击了：{this.state.clickCount}</p>
374
375 </div>
376
377 )
378
379 }
380
381 });
382
383
384
385 var clickComponent = React.render(
386
387 <ClickApp />,
388
389 document.getElementById('app')
390
391 )
392
393
394
395
396
397 </script>
398
399
400
401
402
403 </body>
404
405
406
407 </html>
408
409
410
411 <html>
412
413
414
415 <head>
416
417 <meta charset="utf-8">
418
419 <title>学习React！！</title>
420
421 </head>
422
423
424
425 <body>
426
427 <div id="app"></div>
428
429 <script src="bower_components/react/react.js"></script>
430
431 <script src="bower_components/react/JSXTransformer.js"></script>
432
433 <script type="text/jsx">
434
435 var MessageBox = React.createClass({
436
437 getInitialState:function(){
438
439 return {
440
441 isVisible: true,
442
443 subMessages:[
444
445 '我会代码搬砖',
446
447 '以及花式搬砖',
448
449 '不说了，工头叫我回去搬砖了。。。。。。',
450
451 ]
452
453 }
454
455 },
456
457 render:function(){
458
459
460
461 return (
462
463 <div>
464
465 <h1>{this.props.title}</h1>
466
467 <Submessage messages={this.state.subMessages} />
468
469 </div>
470
471 )
472
473 }
474
475 });
476
477
478
479 var Submessage = React.createClass({
480
481 propTypes:{
482
483 messages: React.PropTypes.array.isRequired,
484
485 },
486
487 getDefaultProps:function(){
488
489 return {
490
491 messages: ['默认的子消息'],
492
493 }
494
495 },
496
497 render:function(){
498
499 var msgs = [];
500
501 this.props.messages.forEach(function(msg,index){
502
503 msgs.push(
504
505 <p>码农说： {msg}</p>
506
507 )
508
509 });
510
511
512
513 return (
514
515 <div>{msgs}</div>
516
517 )
518
519 }
520
521 });
522
523
524
525 var title = '你好世界（来自props哦）';
526
527
528
529 var messageBox = React.render( <MessageBox title={title}/>,
530
531 document.getElementById('app')
532
533 )
534
535
536
537
538
539 </script>
540
541
542
543
544
545 </body>
546
547
548
549 </html>
550
551
552
553
554
555 <html>
556
557
558
559 <head>
560
561 <meta charset="utf-8">
562
563 <title>学习React！！</title>
564
565 </head>
566
567
568
569 <body>
570
571 <div id="app"></div>
572
573 <script src="bower_components/react/react.js"></script>
574
575 <script src="bower_components/react/JSXTransformer.js"></script>
576
577 <script type="text/jsx">
578
579 var ClickApp = React.createClass({
580
581 getInitialState:function(){
582
583 return {
584
585 clickCount: 0, }
586
587 },
588
589 handleClick: function(e){
590
591 this.setState({
592
593 clickCount: this.state.clickCount + 1,
594
595 });
596
597 console.log(e.nativeEvent);
598
599
600
601 },
602
603 render: function(){
604
605 return (
606
607 <div>
608
609 <h2>点击下面按钮</h2>
610
611 <button onClick={this.handleClick}>点击我</button>
612
613 <p>你一共点击了：{this.state.clickCount}</p>
614
615 </div>
616
617 )
618
619 }
620
621 });
622
623
624
625 var clickComponent = React.render(
626
627 <ClickApp />,
628
629 document.getElementById('app')
630
631 )
632
633
634
635
636
637 </script>
638
639
640
641
642
643 </body>
644
645
646
647 </html>
648
649
650
651
652
653 <html>
654
655
656
657 <head>
658
659 <meta charset="utf-8">
660
661 <title>学习React！！</title>
662
663 </head>
664
665
666
667 <body>
668
669 <div id="app"></div>
670
671 <script src="bower_components/react/react.js"></script>
672
673 <script src="bower_components/react/JSXTransformer.js"></script>
674
675 <script type="text/jsx">
676
677 var FormApp = React.createClass({
678
679 getInitialState:function(){
680
681 return {
682
683 inputValue: 'input value',
684
685 selectValue: 'A',
686
687 radioValue:'B',
688
689 checkValues:[],
690
691 textareaValue:'some text here,,,,,'
692
693 }
694
695 },
696
697 handleSubmit:function(e){
698
699 e.preventDefault();
700
701 var formData = {
702
703 input: this.refs.goodInput.getDOMNode().value,
704
705 select: this.refs.goodSelect.getDOMNode().value,
706
707 textarea: this.refs.goodTextarea.getDOMNode().value,
708
709 radio: this.state.radioValue,
710
711 check: this.state.checkValues,
712
713 }
714
715
716
717 console.log('the form result is:')
718
719 console.log(formData);
720
721
722
723 this.refs.goodRadio.saySomething();
724
725
726
727 },
728
729 handleRadio:function(e){
730
731 this.setState({
732
733 radioValue: e.target.value,
734
735 })
736
737 },
738
739 handleCheck:function(e){
740
741 var checkValues = this.state.checkValues.slice();
742
743 var newVal = e.target.value;
744
745 var index = checkValues.indexOf(newVal);
746
747 if( index == -1 ){
748
749 checkValues.push( newVal )
750
751 }else{
752
753 checkValues.splice(index,1);
754
755 }
756
757
758
759 this.setState({
760
761 checkValues: checkValues,
762
763 })
764
765 },
766
767 render: function(){
768
769 return (
770
771 <form onSubmit={this.handleSubmit}>
772
773 <input ref="goodInput" type="text" defaultValue={this.state.inputValue }/>
774
775 <br/>
776
777 选项：
778
779 <select defaultValue={ this.state.selectValue } ref="goodSelect">
780
781 <option value="A">A</option>
782
783 <option value="B">B</option>
784
785 <option value="C">C</option>
786
787 <option value="D">D</option>
788
789 <option value="E">E</option>
790
791 </select>
792
793 <br/>
794
795 <p>radio button!</p>
796
797 <RadioButtons ref="goodRadio" handleRadio={this.handleRadio} />
798
799 <br/>
800
801
802
803 <Checkboxes handleCheck={this.handleCheck} />
804
805 <br/>
806
807 <textarea defaultValue={this.state.textareaValue} ref="goodTextarea"></textarea>
808
809 <button type="submit">提交</button>
810
811
812
813 </form>
814
815 )
816
817 }
818
819 });
820
821
822
823 var RadioButtons = React.createClass({
824
825 saySomething:function(){
826
827 alert("yo what's up man!");
828
829 },
830
831 render:function(){
832
833 return (
834
835 <span>
836
837 A
838
839 <input onChange={this.props.handleRadio} name="goodRadio" type="radio" value="A"/>
840
841 B
842
843 <input onChange={this.props.handleRadio} name="goodRadio" type="radio" defaultChecked value="B"/>
844
845 C
846
847 <input onChange={this.props.handleRadio} name="goodRadio" type="radio" value="C"/>
848
849 </span>
850
851 )
852
853 }
854
855 });
856
857
858
859 var Checkboxes = React.createClass({
860
861 render: function(){
862
863 return (
864
865 <span>
866
867 A
868
869 <input onChange={this.props.handleCheck} name="goodCheckbox" type="checkbox" value="A"/>
870
871 B
872
873 <input onChange={this.props.handleCheck} name="goodCheckbox" type="checkbox" value="B" />
874
875 C
876
877 <input onChange={this.props.handleCheck} name="goodCheckbox" type="checkbox" value="C" />
878
879 </span>
880
881 )
882
883 }
884
885 })
886
887
888
889
890
891 var formApp = React.render(
892
893 <FormApp />,
894
895 document.getElementById('app')
896
897 )
898
899
900
901
902
903 </script>
904
905
906
907
908
909 </body>
910
911
912
913 </html>
914
915
916
917
918
919 <html>
920
921
922
923 <head>
924
925 <meta charset="utf-8">
926
927 <title>学习React！！</title>
928
929 </head>
930
931
932
933 <body>
934
935 <div id="app"></div>
936
937 <script src="bower_components/react/react-with-addons.js"></script>
938
939 <script src="bower_components/react/JSXTransformer.js"></script>
940
941 <script type="text/jsx">
942
943 var EasyForm = React.createClass({
944
945 mixins: [ React.addons.LinkedStateMixin ],
946
947 getInitialState:function(){
948
949 return {
950
951 message: 'react is awesome!',
952
953 isReactAwesome: true,
954
955 }
956
957 },
958
959 render:function(){
960
961 return (
962
963 <div>
964
965 <h1>我想说： {this.state.message}</h1>
966
967 <h2>React是不是很好用？ {this.state.isReactAwesome?'非常好用！':'一般般。。。'}</h2>
968
969 <input type="text" valueLink={this.linkState('message')} />
970
971 <br/>
972
973 <input type="checkbox" checkedLink={this.linkState('isReactAwesome') } />
974
975 <br/>
976
977 <SubComp messageLink={ this.linkState('message') } likeLink={this.linkState('isReactAwesome')} />
978
979
980
981 </div>
982
983 )
984
985 }
986
987 });
988
989
990
991 var SubComp = React.createClass({
992
993 render:function(){
994
995 return (
996
997 <div>
998
999 <h3>这是个子组件哦</h3>
1000
1001 <SubSubComp {...this.props } />
1002
1003 </div>
1004
1005 )
1006
1007 }
1008
1009 });
1010
1011
1012
1013 var SubSubComp = React.createClass({
1014
1015 render:function(){
1016
1017 return (
1018
1019 <div>
1020
1021 <p>你想说什么？</p>
1022
1023 <input type="text" valueLink={ this.props.messageLink } />
1024
1025 <p>你稀罕React么？</p>
1026
1027 <input type="checkbox" checkedLink = {this.props.likeLink } />
1028
1029 </div>
1030
1031 )
1032
1033 }
1034
1035 })
1036
1037
1038
1039
1040
1041 React.render( <EasyForm />, document.getElementById('app') );
1042
1043
1044
1045
1046
1047 </script>
1048
1049
1050
1051
1052
1053 </body>
1054
1055
1056
1057 </html>
1058
1059
1060
1061
1062
1063 <html>
1064
1065
1066
1067 <head>
1068
1069 <meta charset="utf-8">
1070
1071 <title>学习React！！</title>
1072
1073 </head>
1074
1075
1076
1077 <body>
1078
1079 <div id="app"></div>
1080
1081 <script src="bower_components/react/react.js"></script>
1082
1083 <script src="bower_components/react/JSXTransformer.js"></script>
1084
1085 <script type="text/jsx">
1086
1087 var MessageBox = React.createClass({
1088
1089 getInitialState:function(){
1090
1091 console.log('getInitialState');
1092
1093 return {
1094
1095 count: 0,
1096
1097 }
1098
1099 },
1100
1101 getDefaultProps:function(){
1102
1103 console.log('getDefaultProps');
1104
1105 return {};
1106
1107 },
1108
1109 componentWillMount:function(){
1110
1111 console.log('componentWillMount');
1112
1113 var self = this;
1114
1115
1116
1117 this.timer = setInterval(function(){
1118
1119 self.setState({
1120
1121 count: self.state.count + 1,
1122
1123 })
1124
1125 },1000);
1126
1127
1128
1129 },
1130
1131 componentDidMount:function(){
1132
1133 console.log('componentDidMount')
1134
1135 console.log(this.getDOMNode() );
1136
1137 },
1138
1139 componentWillUnmount: function(){
1140
1141 alert('you are tring to kill me !! ')
1142
1143
1144
1145 clearInterval(this.timer);
1146
1147
1148
1149 },
1150
1151 killMySelf: function(){
1152
1153 React.unmountComponentAtNode( document.getElementById('app') );
1154
1155 },
1156
1157 render:function(){
1158
1159 console.log('渲染')
1160
1161 return (
1162
1163 <div>
1164
1165 <h1 > 计数： {this.state.count}</h1>
1166
1167 <button onClick={this.killMySelf}>卸载掉这个组件</button>
1168
1169 <Submessage/>
1170
1171 </div>
1172
1173 )
1174
1175 }
1176
1177 });
1178
1179
1180
1181 var Submessage = React.createClass({
1182
1183 render:function(){
1184
1185 return (
1186
1187 <h3>写代码很有意思</h3>
1188
1189 )
1190
1191 }
1192
1193 });
1194
1195
1196
1197
1198
1199 var messageBox = React.render( <MessageBox/>,
1200
1201 document.getElementById('app')
1202
1203 )
1204
1205
1206
1207
1208
1209 </script>
1210
1211
1212
1213
1214
1215 </body>
1216
1217
1218
1219 </html>
1220
1221
1222
1223
1224
1225
1226
1227 <html>
1228
1229
1230
1231 <head>
1232
1233 <meta charset="utf-8">
1234
1235 <title>学习React！！</title>
1236
1237 </head>
1238
1239
1240
1241 <body>
1242
1243 <div id="app"></div>
1244
1245 <script src="bower_components/react/react.js"></script>
1246
1247 <script src="bower_components/react/JSXTransformer.js"></script>
1248
1249 <script type="text/jsx">
1250
1251 var MessageBox = React.createClass({
1252
1253 getInitialState:function(){
1254
1255 return {
1256
1257 count: 0,
1258
1259 }
1260
1261 },
1262
1263 getDefaultProps:function(){
1264
1265 },
1266
1267 // componentWillMount:function(){
1268
1269 // },
1270
1271 // componentDidMount:function(){
1272
1273 // },
1274
1275 // componentWillUnmount: function(){
1276
1277
1278
1279 // },
1280
1281 //
1282
1283 shouldComponentUpdate:function(nextProp,nextState){
1284
1285 console.log('shouldComponentUpdate');
1286
1287 if(nextState.count > 10) return false;
1288
1289
1290
1291 return true;
1292
1293 },
1294
1295 componentWillUpdate:function(nextProp,nextState){
1296
1297 console.log('componentWillUpdate');
1298
1299 },
1300
1301 componentDidUpdate:function(){
1302
1303 console.log('componentDidUpdate');
1304
1305 },
1306
1307 killMySelf: function(){
1308
1309 React.unmountComponentAtNode( document.getElementById('app') );
1310
1311 },
1312
1313 doUpdate:function(){
1314
1315 this.setState({
1316
1317 count: this.state.count + 1,
1318
1319 });
1320
1321 },
1322
1323 render:function(){
1324
1325 console.log('渲染')
1326
1327 return (
1328
1329 <div>
1330
1331 <h1 > 计数： {this.state.count}</h1>
1332
1333 <button onClick={this.killMySelf}>卸载掉这个组件</button>
1334
1335 <button onClick={this.doUpdate}>手动更新一下组件（包括子组件）</button>
1336
1337 <Submessage count={this.state.count}/>
1338
1339 </div>
1340
1341 )
1342
1343 }
1344
1345 });
1346
1347
1348
1349 var Submessage = React.createClass({
1350
1351 componentWillReceiveProps:function(nextProp){
1352
1353 console.log('子组件将要获得prop');
1354
1355
1356
1357 },
1358
1359 shouldComponentUpdate:function(nextProp,nextState){
1360
1361 if(nextProp.count> 5) return false;
1362
1363 return true;
1364
1365 },
1366
1367 render:function(){
1368
1369 return (
1370
1371 <h3>当前计数是：{this.props.count}</h3>
1372
1373 )
1374
1375 }
1376
1377 });
1378
1379
1380
1381
1382
1383 var messageBox = React.render( <MessageBox/>,
1384
1385 document.getElementById('app')
1386
1387 )
1388
1389
1390
1391
1392
1393 </script>
1394
1395
1396
1397
1398
1399 </body>
1400
1401
1402
1403 </html>
1404
1405
1406
1407
1408
1409
1410
1411 <html>
1412
1413
1414
1415 <head>
1416
1417 <meta charset="utf-8">
1418
1419 <title>学习React！！</title>
1420
1421 </head>
1422
1423
1424
1425 <body>
1426
1427 <div id="app"></div>
1428
1429 <script src="bower_components/react/react.js"></script>
1430
1431 <script src="bower_components/react/JSXTransformer.js"></script>
1432
1433 <script type="text/jsx">
1434
1435 var stateRecordMixin = {
1436
1437 componentWillMount:function(){
1438
1439 this.oldStates = [];
1440
1441 },
1442
1443 componentWillUpdate: function(nextProp,nextState){
1444
1445 this.oldStates.push(nextState);
1446
1447 },
1448
1449 previousState:function(){
1450
1451 var index = this.oldStates.length -1;
1452
1453 return index == -1 ? {} : this.oldStates[index];
1454
1455 }
1456
1457 }
1458
1459
1460
1461 var MessageBox = React.createClass({
1462
1463 mixins: [stateRecordMixin],
1464
1465 getInitialState:function(){
1466
1467 return {
1468
1469 count: 0,
1470
1471 }
1472
1473 },
1474
1475 doUpdate:function(){
1476
1477 this.setState({
1478
1479 count: this.state.count + 1,
1480
1481 });
1482
1483
1484
1485 alert('上一次的计数是：'+this.previousState().count)
1486
1487 },
1488
1489 render:function(){
1490
1491 console.log('渲染')
1492
1493 return (
1494
1495 <div>
1496
1497 <h1 > 计数： {this.state.count}</h1>
1498
1499 <button onClick={this.doUpdate}>手动更新一下组件（包括子组件）</button>
1500
1501 <Submessage count={this.state.count}/>
1502
1503 </div>
1504
1505 )
1506
1507 }
1508
1509 });
1510
1511
1512
1513 var Submessage = React.createClass({
1514
1515 mixins: [stateRecordMixin],
1516
1517 getInitialState:function(){
1518
1519 return {
1520
1521 count: 0,
1522
1523 }
1524
1525 },
1526
1527 componentWillReceiveProps:function(nextProp){
1528
1529 this.setState({
1530
1531 count: this.props.count *2,
1532
1533 })
1534
1535 },
1536
1537 render:function(){
1538
1539 console.log('上一次子组件的计数是：'+this.previousState().count )
1540
1541 return (
1542
1543 <h3>当前子组件的计数是：{this.state.count}</h3>
1544
1545 )
1546
1547 }
1548
1549 });
1550
1551
1552
1553
1554
1555 var messageBox = React.render( <MessageBox/>,
1556
1557 document.getElementById('app')
1558
1559 )
1560
1561
1562
1563
1564
1565 </script>
1566
1567
1568
1569
1570
1571 </body>
1572
1573
1574
1575 </html>
1576
1577
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