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ViewsHow can I store and filter large JSON objects (above 70,000)?
const users = [
{id:1, email:"abc@email.com"},
{id:2, email:"xyz@email.com"},
{....}(~70,000 objects)
]
function a(){
const id = 545
users.filter((value)=>{
if(value.id === id)
return true
})
}
We have 70,000 users' objects. we need to filter the email based on the id.
users= [{id: '1001', email: "abc@gmail.com"}, {{id: '1002', email: "spc@gmail.com"} , ..];
Using array and array.filter() ends up in the error.
Error
what's the best way of approach for this?
·
Juan Pablo Isaza
1 answers
Answer question0
It might be best to convert your array into a Map so that lookups can be made without scanning the entire array. As such:
const lookupMap = new Map(users.map((u) => [u.id, u]));
so now you can
const user = lookupMap.get(userId)
without having to scan all 70000 user objects.
·
Juan Pablo Isaza
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