how can data with level 2 be more easily classified under level 1 and category = parent_category?
there is a children: [] field under the data with a level of 1.
Thank you
how can data with level 2 be more easily classified under level 1 and category = parent_category?
there is a children: [] field under the data with a level of 1.
Thank you
var arr=[
{cate:'help',level:'1',par:''},
{cate:'about',level:'1',par:''},
{cate:'disc',level:'1',par:''},
{cate:'dis_ins',level:'2',par:'disc'},
{cate:'beian',level:'2',par:'disc'},
{cate:'test',level:'2',par:'help'},
{cate:'test_123',level:'2',par:'about'}
]
repl(arr);
function repl(arr){
var cach = [],newArr=[];
for(var i=0;i<arr.length;iPP){
var cate = arr[i].cate,
par = arr[i].par;
if(arr[i].level=='1'){
arr[i].children=[];
newArr.push(arr[i]);
cach.push(cate);
}else{
var idx=cach.indexOf(par);
if(idx!=-1){
newArr[idx].children.push(arr[i]);
}
}
}if there are only two levels, use the following
function classify(arr, level = '1', parent_category = '') {
const children = arr.filter(
a => a.level === `${level}` && a.parent_category === parent_category,
)
return children.length === 0
? children
: children.map(a => ({
...a,
children: classify(arr, parseInt(a.level, 10) + 1, a.parent),
}))
}
const result = classify(arr)Previous: What are the requirements of the spring integration package developed by kafka?
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