In ruby I'm able to do the following:

myObject.map(&:name)

And I get an array composed by all the name field for all values inside myObject (array or object).

What's the underscore.js or lodash.js equivalent? I prefer in only one line if possible :)

Example: (in js)

_.map([{name: 'x'}, {name: 'y'}], function(obj){
    //dosomething
})

In ruby I'm able to do the following:

myObject.map(&:name)

And I get an array composed by all the name field for all values inside myObject (array or object).

What's the underscore.js or lodash.js equivalent? I prefer in only one line if possible :)

Example: (in js)

_.map([{name: 'x'}, {name: 'y'}], function(obj){
    //dosomething
})

• javascript
• arrays
• node.js
• underscore.js
• lodash

3 Answers 3

_.pluck([{name: 'x'}, {name: 'y'}],"name"); 

this will give you: ["x","y"];

see http://underscorejs.org/#pluck

For lodash users,

_.map([{'name': 'x'}, {'name': 'y'}], 'name');

// ['x', 'y'] 

Using pure Javascript simply use map

let data = [{name: 'x'}, {name: 'y'}];
data.map( (item) => item.name );

Will return you ["x", "y"].