Underscore.js - Map Array Of Key/value Pairs To An Object - One Liner
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 following Javascript
Solution 1:
Variation on Sza's answer, using the "array of pairs" signature of _.object
:
_.object(_.map(data, function(x){return [x.name, x.value]}))
Solution 2:
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'));
Solution 3:
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},{});
Solution 4:
var names = _.pluck(data, 'name');
var values = _.pluck(data, 'value');
var result = _.object(_.zip(names, values));
console.log(result);
Solution 5:
Let's say you have the following JavaScript array:
varlist= [
{
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;
returntable;
}, {});
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.
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