im trying to sort this type of array and i have give the expected output below can anyone tell me how i can do that i know the single array sort but dont know the nested one can anyone help me...
var list = [
{name: "Bob" , item : [ {price:500},{price: 302} ]},
{name: "Tom" ,item : [ {price: 200} ,{price: 600}] },
];
expected output// price:200
// price:302
// price:500
// price:600
//tried something for normal array what to do for this type of array
list.sort(function(a, b) {
return ((a.name < b.name) ? -1 : ((a.name == b.name) ? 0 : 1));
});
for (var i = 0; i<list.length; i++) {
alert(list[i].name + ", " + list[i].age);
}
You can use underscore.
_.chain(list).map((item) => item.item).flatten().pluck('price').sort().value()
Output:
[200, 302, 500, 600]
Or if you want to keep the keys:
_.chain(list).map((item) => item.item).flatten().sort((a,b) => a.price - b.price).value()
Output:
0: {price: 200}, 1: {price: 302}, 2: {price: 500}, 3: {price: 600}
var list = [
{ name: "Bob", item: [{ price: 500 }, { price: 302 }] },
{ name: "Tom", item: [{ price: 200 }, { price: 600 }] },
];
let sortThePrices = [];
list.forEach((e) => {
e.item.forEach((prop) => {
sortThePrices.push(prop.price);
});
});
sortThePrices.sort((a, b) => a - b);
sortThePrices.forEach((price) => {
console.log("Price: " + price);
});I tried to make this solution to problem easy to understand, I hope this helps
var list = [
{name: "Bob" , item : [ {price:500},{price: 302} ]},
{name: "Tom" ,item : [ {price: 200} ,{price: 600}] },
];
const compare = ( a, b ) => {
if ( a.price < b.price ){
return -1;
}
if ( a.price > b.price ){
return 1;
}
return 0;
}
list.map(val => val.item.sort(compare))
console.log("list: ", list)Hope this works for you!