How to be elegant asked 2 months ago
For an array with a tree structure like this, I want to replace all names with titles. How can I traverse it. The level of the array is variable, and there may be some without children in it.
const treeData = [{
title: '0-0',
key: '0-0',
children: [{
title: '0-0-0',
key: '0-0-0',
children: [
{ title: '0-0-0-0', key: '0-0-0-0' },
{ title: '0-0-0-1', key: '0-0-0-1' },
{ title: '0-0-0-2', key: '0-0-0-2' },
],
}, {
title: '0-0-1',
key: '0-0-1',
children: [
{ title: '0-0-1-0', key: '0-0-1-0' },
{ title: '0-0-1-1', key: '0-0-1-1' },
{ title: '0-0-1-2', key: '0-0-1-2' },
],
}, {
title: '0-0-2',
key: '0-0-2',
}],
}, {
title: '0-1',
key: '0-1',
children: [
{ title: '0-1-0-0', key: '0-1-0-0' },
{ title: '0-1-0-1', key: '0-1-0-1' },
{ title: '0-1-0-2', key: '0-1-0-2' },
],
}, {
title: '0-2',
key: '0-2',
children: []
}];4 Answers
Sky shadow answered 2 months ago
Recursive traversal
function setName(obj){
for(var i in obj){
obj[i].name = obj[i].title;
if(obj[i].chilren){
setName(obj[i].children)
}
}
console.log(obj);
}
setName(treeData)function treedata(a){
let d=a.map(r=>{
if(r.children){
return {'name':r.title,'key':r.key,'children':treedata(r.children)}
}else{
return {'name':r.title,'key':r.key}
}
})
return d
}
console.log(treedata(treeData))JSON.parse(JSON.stringify(treeData).replace(/"title"/g,'"name"'))If it’s just this simple structure in the title, it’s a lazy way
exponent