我創建了一個簡單的應用程序使用YouTube的API來搜索視頻,但是當我使用npm start
它並沒有給我任何錯誤,但給我的警告Warning: Unknown prop
onItemSearched on <searchItem> tag. Remove this prop from the element. in searchItem (created by listItem) in div (created by listItem) in listItem
ReactJS - 警告:未知道具
這裏是我的代碼:
var React = require('react');
var Item = require('./item.jsx');
var searchItem = React.createClass({
getInitialState : function() {
return {
'queryString' : ''
};
},
handleSearchClicked : function() {
this.props.onItemSearched(this.state);
this.setState({
'queryString' : ''
});
},
handleChangedNameItem : function(e) {
e.preventDefault();
this.setState({
'queryString' : e.target.value
});
},
render : function() {
return (
<div>
<label>
<input id="query" type="text" onChange={this.handleChangedNameItem} value={this.state.queryString} placeholder="Search videos..." />
<button id="search-button" onClick={this.handleSearchClicked}>Search</button>
</label>
</div>
);
}
});
這是什麼樣的listItem我展示我的結果
var listItem = React.createClass({
getInitialState : function() {
return {
'results' : []
};
},
handleQuerySearch : function(query) {
var req = gapi.client.youtube.search.list({
'part': 'snippet',
'type': 'video',
'q' : encodeURIComponent(query).replace(/%20/g, "+"),
'order' : 'viewCount',
});
//execute request
req.execute((res) => {
var results = res.result;
this.setState({
'results' : results.items
});
});
},
render : function() {
var listItem = this.state.results.map(item => {
return(
<Item title={item.snippet.title} videoid={item.id.videoId} />
);
});
return (
<div>
<searchItem onItemSearched={this.handleQuerySearch} />
<div className="list-item">
{listItem}
</div>
</div>
);
}
});
module.exports = listItem;
,可能是警告是怎樣被接收的道具?如果不知道問題是什麼,不能做太多;) –
我編輯:) –