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so i am working with angular and i have a alert box with a text field that takes the input ({{name}}) and gives something like Welcome {{name}}. I want to match this {{name}} with my json array data which has name and a specific id.

What i want is the to match the {{name}} with json array name and get the corresponding id of that name. And also get only the last 4 digits of that id.

So the expected output should be something like
i/p: name="tom"
o/p: 7647

Any help would be appreciated thanks a lot.

What I have tried:

JSON data:

var json=[{

function xyz{
 var loginName = document.getElementById("login").value

  var search = =>

  json[i].id // i should be index of matching name // I do not know how to get corresponding id with last 4 digits for that name.
<welcome id="login" name="{{name}}"></welcome>
When i am trying to get name with id="login" it's giving me entire "Welcome name" but i want only name.

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