auto_complete.html
<!DOCTYPEhtml> <html> <head> <Metacharset="UTF-8"/> <title>HelloReact!</title> <linkhref="css/auto_complete.css"rel="stylesheet"/> <scriptsrc="jslib/jquery-1.11.3.min.js"></script> <scriptsrc="jslib/react.min.js"></script> <scriptsrc="jslib/react-dom.min.js"></script> </head> <body> <divid="autocomplete"></div> <scriptsrc="js/auto_complete.js"></script> </body> </html>
js/auto_complete.js
varAutoComplete=React.createClass({
list:["apple","banana","grape","org","orange"],timeout:null,getInitialState:function(){
return{
open:null,matchedItems:this.generateLiHtml(this.list)
}
},generateLiHtml:function(list){
varmatchedItems=[];
for(vari=0;i<list.length;i++){
varitem=React.DOM.li({key:i,onClick:this.clickHandler},list[i]);
matchedItems.push(item);
}
returnmatchedItems;
},clickHandler:function(e){
e.stopPropagation();
e.preventDefault();
varliItem=$(e.target);
varcontent=$(liItem).html();
$(ReactDOM.findDOMNode(this)).find("input").val(content);
this.setState({open:""});
},keyUpHandler:function(e){
e.stopPropagation();
clearTimeout(this.timeout);
varval=e.target.value;
varthat=this;
this.timeout=setTimeout(function(){
varresult=[];
for(vari=0;i<that.list.length;i++){
varitem=that.list[i];
if(item.startsWith(val)){
result.push(item);
}
}
varopen=null;
if(result.length>0){
open="open";
}
varmatchedItems=that.generateLiHtml(result);
that.setState({matchedItems:matchedItems,open:open});
},300);
},render:function(){
returnReact.DOM.div(
{className:"auto-complete"},React.DOM.input({type:"text",onKeyUp:this.keyUpHandler}),React.DOM.div(
{className:this.state.open},React.DOM.ul(null,this.state.matchedItems
)
)
);
}
});
ReactDOM.render(
React.createElement(AutoComplete),$("#autocomplete")[0]
);
css/auto_complete.css
.auto-complete{
width:200px;
}
.auto-completeinput{
width:100%;
Box-sizing:border-Box;
}
.auto-complete>div{
display:none;
padding-top:10px;
}
.auto-complete>div.open{display:block;}
.auto-complete>divul{
padding:0;
margin:0;
list-style-type:none;
border:1pxsolid#ccc;
}
.auto-complete>divulli{
height:30px;
line-height:30px;
border-bottom:1pxsolid#ccc;
padding-left:10px;
}
.auto-complete>divulli:hover{
background-color:#eaeaea;
cursor:pointer;
}
.auto-complete>divulli:last-child{
border-bottom:none;
} 原文链接：https://www.f2er.com/react/307100.html