How can I get the index of an object by its property in JavaScript?

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Since the sort part is already answered. I’m just going to propose another elegant way to get the indexOf of a property in your array

Your example is:

var Data = [
    {id_list:1, name:'Nick', token:'312312'},
    {id_list:2, name:'John', token:'123123'}
]

You can do:

var index = Data.map(function(e) { return e.name; }).indexOf('Nick');


var Data = [{
    id_list: 1,
    name: 'Nick',
    token: '312312'
  },
  {
    id_list: 2,
    name: 'John',
    token: '123123'
  }
]
var index = Data.map(function(e) {
  return e.name;
}).indexOf('Nick');
console.log(index)

Array.prototype.map is not available on Internet Explorer 7 or Internet Explorer 8. ES5 Compatibility

And here it is with ES6 and arrow syntax, which is even simpler:

const index = Data.map(e => e.name).indexOf('Nick');

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