如何在JavaScript中按名字或姓氏或名字和姓氏精确搜索？

Question

There is a function, which accepts a text value on each input.

There is an array which is full of user objects

I need to map through the array and get exact values

For example, if I write 'H' or 'h' I will find only Hanna Montanna, for 'A' or 'a' I will get 'Alexander Castle' and 'Anthony Hopkins' and so on and so force

function foo(value) {
     // code here 
}

 const users = [{ name: 'Alexander Castle', age: 25 }, { name: 'Anthony
 Hopkins', age: 60 }, { name: 'Naomi Kempbell', age: 37 }, { name:
 'Hannah Montanna', age: 19 }];

Answer 1

This could be your solution:

function search(term, users) {
    term = term.toLowerCase();
    return users.filter(u => u.name.toLowerCase().startsWith(term));
}
const users = [{
  name: 'Alexander Castle',
  age: 25
}, {
  name: 'Anthony Hopkins',
  age: 60
}, {
  name: 'Naomi Kempbell',
  age: 37
}, {
  name: 'Hannah Montanna',
  age: 19
}];
console.log(search('a',users));

Answer 2

The above answer is perfectly fine but there is no need to lowercase term parameter and replace it's value with same lowercase value. So simply you can write like.

function search(term, users) {  return users.filter(u => u.name.toLowerCase().startsWith(term.toLowerCase())); }