I'm new to typescript or node.js, I'm trying to combine the below JSON array Note: Not sure if the client allows any new dependencies or plugins can this be achieved without using underscore or jquery extend
[ { parentauthscopekey: 1, childauthscopekey: 2 },
{ parentauthscopekey: 12, childauthscopekey: 10 },
{ parentauthscopekey: 12, childauthscopekey: 11 },
{ parentauthscopekey: 13, childauthscopekey: 1 } ]
To
[ { parentauthscopekey: 1, childauthscopekey: [ 2, 1 ] },
{ parentauthscopekey: 12, childauthscopekey: [ 10, 11, 12 ] },
{ parentauthscopekey: 13, childauthscopekey: [ 1, 13 ] } ]
Tried the below code, It's just too many lines but does the job, but expecting something simple without using the hardcoded scope and scopeMap values
table = [ { parentauthscopekey: 1, childauthscopekey: 2 },
{ parentauthscopekey: 12, childauthscopekey: 10 },
{ parentauthscopekey: 12, childauthscopekey: 11 },
{ parentauthscopekey: 13, childauthscopekey: 1 } ]
scope=[1,12,13]
scopeMap = new Set()
table2 = []
scope.forEach(parentauthscopekey => {
table.forEach(row =>{
if(row.parentauthscopekey == parentauthscopekey && !scopeMap.has(parentauthscopekey))
{
scopeMap.add(parentauthscopekey)
childauthscopekey = []
table.filter(c => c.parentauthscopekey == row.parentauthscopekey).forEach(r=>{
childauthscopekey.push(r.childauthscopekey)
})
childauthscopekey.push(parentauthscopekey)
table2.push({parentauthscopekey, childauthscopekey})
}
})
})
console.log(table2)
you can :
array.reduce to construct the expecting structurearray.filtervar data = [ { parentauthscopekey: 1, childauthscopekey: 2 },
{ parentauthscopekey: 12, childauthscopekey: 10 },
{ parentauthscopekey: 12, childauthscopekey: 11 },
{ parentauthscopekey: 13, childauthscopekey: 1 } ];
var result = data.reduce((acc, current) => {
if (!acc.some(one => one.parentauthscopekey === current.parentauthscopekey)) {
var childs = data.filter(one => one.parentauthscopekey === current.parentauthscopekey).map(one => one.childauthscopekey);
childs.push(current.parentauthscopekey);
acc.push({
parentauthscopekey: current.parentauthscopekey,
childauthscopekey: childs
})
}
return acc;
}, []);
console.log(result);