I want to add validation for following java script associative array.
Here is my array structure
array = [
{ id: 1, remaining_amount: 30, total: 20 },
{ id: 1, remaining_amount: 30, total: 20 },
{ id: 2, remaining_amount: 50, total: 40 }
]
From the above array, for id 1, remaining amount is 30 but total amount is 40
So i want to add the validation that if total amount is grater then remaining amount for particular id then it will show me message.
Any Idea?
You can use reduce and filter
Use reduceto summarise the total. and use filter to get all those array that total is greater than remaining_amount
var array = [{ id: 1, remaining_amount: 30, total: 20 },{ id: 1, remaining_amount: 30, total: 20 },{ id: 2, remaining_amount: 50, total: 40 }];
var result = Object.values(array.reduce((c, v) => {
c[v.id] = c[v.id] || {id: v.id,remaining_amount: v.remaining_amount,total: 0};
c[v.id].total += v.total;
return c;
}, {})).filter(o => o.remaining_amount < o.total);
console.log(result);
You can use this code -
array.forEach(function(obj) {
if (obj.total > obj.remaining_amount)
console.log(`for id ${obj.id}, remaining amount is ${obj.remaining_amount} but total amount is ${obj.total}`);
});
remaining_amountwill always be the same on all array elements with the sameid?