Get value from string in JavaScript efficiently

Question

How could I get a variable/property from a string in JavaScript?

The string obj.val returns the value of obj.val. Is adding \" to the beginning and end of the string enough? Thanks! :)

Unlike the post some of you have suggested, the values I want don't have string keys.

See [this post](https://stackoverflow.com/questions/6491463/accessing-nested-javascript-objects-with-string-key) and there also is a [lodash function](https://lodash.com/docs/4.17.4#get) for it — ASDFGerte, Aug 12 '17 at 23:00

score 0 · Answer 1 · answered Aug 13 '17 at 04:32

0

you can get value of variable with string name with this[yourString] or with scope[yourString].

var someVar = "Hello world!";
this["someVar"] //this print value of variable name "someVar"

var obj = {}; obj.var = "some object!";
this["obj"]["var"] //this will get value of object property with "var"

answered Aug 13 '17 at 04:32

Yogen Darji

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I mean without a string name. Like `var test = [5, 2]; var x = "test[0]";`. How would I get the value `5` from `x`? – Procavia Capensis Aug 13 '17 at 13:09

Get value from string in JavaScript efficiently

1 Answers1