JS递归遍历树结构

Posted 2023-02-18 S1ow

<script>

    var arrs = [];

    function haha()
       var data = [
           
               name: '中国',
               children: [
                   
                       name: '教第三节课',

                   ,
                   
                       name: '教呼呼',
                       children: [
                           
                               name: '大一',
                               children: [
                                   
                                       name: '课程1',
                                       children: [
                                           
                                               name: '1231'
                                           ,
                                           
                                               name: '121'
                                           
                                       ]
                                   ,
                                   
                                       name: '课程2',
                                       children: [
                                           
                                               name: '1232'
                                           ,
                                           
                                               name: '122'
                                           
                                       ]
                                   ,
                                   
                                       name: '课程3',
                                       children: [
                                           
                                               name: '1233'
                                           ,
                                           
                                               name: '123'
                                           
                                       ]
                                   ,

                               ]
                           
                       ]
                   ,
                   
                       name: '活动',
                       children:null
                   
               ]
           
       ];
        getArray(data,'活动');
        console.log(data);
        for(var i in undefined)
            alert(123);
        
    

    function getArray(data,name)
    
        for (var i in data) 
            console.log('i',i);
            console.log('datai',data[i].children);
            if (data[i].name == name) 
                console.log(data[i]);
                break;
             else 
                getArray(data[i].children, name);
            
        
    

</script>