In my code, I have an array structured like this:
var myArray = [
{id: 1, entry_id: 1, name: 'test', email: 'email1'},
{id: 2, entry_id: 1, name: 'test', email: 'email2'},
{id: 3, entry_id: 2, name: 'test', email: 'email3'},
{id: 4, entry_id: 2, name: 'test', email: 'email4'},
{id: 5, entry_id: 3, name: 'test', email: 'email5'},
{id: 6, entry_id: 3, name: 'test', email: 'email6'},
{id: 7, entry_id: 3, name: 'test', email: 'email7'},
];
The objective is to identify the first element within each group sharing the same 'entry_id' and 'name' properties. The expected result should be:
[
{id: 1, entry_id: 1, name: 'test', email: 'email1', isFirst:true},
{id: 2, entry_id: 1, name: 'test', email: 'email2', isFirst:false},
{id: 3, entry_id: 2, name: 'test', email: 'email3', isFirst:true},
{id: 4, entry_id: 2, name: 'test', email: 'email4', isFirst:false},
{id: 5, entry_id: 3, name: 'test', email: 'email5', isFirst:true},
{id: 6, entry_id: 3, name: 'test', email: 'email6', isFirst:false},
{id: 7, entry_id: 3, name: 'test', email: 'email7', isFirst:false},
];
My attempt involved iterating through the array and setting the 'isFirst' value accordingly, resulting in the following output:
[
{id: 1, entry_id: 1, name: 'test', email: 'email1', isFirst:true},
{id: 2, entry_id: 1, name: 'test', email: 'email2', isFirst:false},
{id: 3, entry_id: 2, name: 'test', email: 'email3', isFirst:true},
{id: 4, entry_id: 2, name: 'test', email: 'email4', isFirst:false},
{id: 5, entry_id: 3, name: 'test', email: 'email5', isFirst:true},
{id: 6, entry_id: 3, name: 'test', email: 'email6', isFirst:false},
{id: 7, entry_id: 3, name: 'test', email: 'email7', isFirst:false},
];
Is there a more efficient approach to achieving this without using nested loops?
Your insights are greatly appreciated!
For additional reference, here is the link to the code on jsfiddle: https://jsfiddle.net/88p5p5oj/30/