Underscore.js - Map Array of key/value pairs to an Object - One liner

Question

I\'ve been going through the underscore docs but I can\'t seem to find a method (or nested method call) to do the following transformation:

Let\'s say I have the followi

Answer 1

var arr = [{ "name" : "sEcho", "value" : 1},{ "name" : "iColumns", "value" : 12}]

ES6

_.mapObject( _.indexBy(arr, 'name'), (v) => v.value )

ES5

_.mapObject( _.indexBy(arr, 'name'), function (v) { return v.value; } )

This iterates twice though