Underscore js find item by ID

Question

I\'m new to Underscore js and bit confused on how to use it. I have a collection of \'goals\' and I want to find one of it by ID.

here\'s the data:

{         


        

Answer 1

You are using Array of objects. So,you can use: _.findWhere(Looks through the list and returns the first value that matches all of the key-value pairs ) to get the all the properties based on id or other key attribute.

var some= [
             {Employee:'ved',id:20}, 
             {Employee:"ved",age:25},
             {Employee:"p",age:2}
          ];

var a = _.findWhere(some,{id:20});
console.log('searchResult',a);

To get the index, you can use something like this:

var b = _.indexOf(some,a);
console.log('index',b);

If you need all list of uses,
TRY: _.where(It looks through each occurrence in the array, returning an array of all the values that contain the key-value pairs listed in properties.)

var some= [ 
            {Employee:"ved",id:20}, 
            {Employee:"ved prakash",id:20},
            {Employee:"anyone",id:2}
          ];
var a = _.where(some,{id:25});
    console.log('searchResult',a);

_.find: It is used to check the value only, not Key-value both.

Visit Docs:_.find