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
Let's say you have the following JavaScript array:
var list = [
{
name: "sEcho",
value: 1
},
{
name: "iColumns",
value: 12
},
...
];
You can convert it into the format you want as follows:
var table = _.reduce(list, function (table, item) {
table[item.name] = item.value;
return table;
}, {});
It's not a one liner, but I don't think you literally meant a one liner. Did you?
Here's a one liner if you really meant a one liner:
var t = _.reduce(list, function (t, i) { return t[i.name] = i.value, t; }, {});
Yes, others have provided the same answer. However that's only because the answer to your question is so simple.
Variation on Sza's answer, using the "array of pairs" signature of _.object
:
_.object(_.map(data, function(x){return [x.name, x.value]}))
perfect place to use reduce I think:
_.reduce(ary, function(memo, obj){ memo[obj["name"]] = obj["value"]; return memo }, {});
Since nobody has posted this as an answer, I'm posting it because I think it is better than Jan's answer. It's shorter, and cleaner without the inline function.
_.object(_.pluck(data, 'name'), _.pluck(data, 'value'));
This should do it:
_.reduce(array, function(o, v){
o[v.name] = v.value;
return o;
}, {});
As a one-liner (you are kidding me, right?):
_.reduce(array,function(a,b){a[b.name]=b.value;return a},{});
var a = [{ "name" : "sEcho", "value" : 1},{ "name" : "iColumns", "value" : 12} ];
var o = {}; _.each(a, function(e) { o[e.name] = e.value; });
console.log(o);
// Object {sEcho: 1, iColumns: 12}