多维数组递归查找

    let test = [{id:1},{id:5,children:[{id:6,children:[{id:7}]}]}]
    
    function chbehavior(arr, id) {
        let res;
        (function deepId(arr, id) {
            for (let a of arr) {
                if (a.id === id) {
                    res = a;
                } else if (a.children && !res) {
                    deepId(a.children, id);
                }
            }
        })(arr, id);
        return res;
    }

    let arrays = this.chbehavior(test, 7)
    console.log(arrays) //{id:7}


	function findId(data, id) {
	    for (let i = 0; i < data.length; i++) {
	        if (data[i].id === id) {
	            return data[i];
	        } else if (data[i].children) {
	            let found = findId(data[i].children, id);
	            if (found) return found;
	        }
	    }
	}

	console.log(findId(test, 7)) //{id:7}