Javascript change an value of a JSON key from String to Array

Question

I have an service that some time return data structure like this

params:value;

and then sometime return

params:[value1, value2];

I want to change if value is String (first case), then delete it and make an empty params:[]. How can I aechive it?

JSON is JavaScript object notation... treat it like Javascript in Javascript.... — Callum Linington
– Callum Linington, Commented Jul 27, 2016 at 14:24
@nicael I checked if it is a string by instanceof and then assign it as new array but nothing happen. Edit: Nvm, I wrote the wrong params:( — Loredra L
– Loredra L, Commented Jul 27, 2016 at 14:48

Nenad Vracar · Accepted Answer · 2016-07-27 14:31:03Z

1

After you parse JSON you can use typeof operator to see if value is string and if it is change it to empty array [].

var data = {
  params: 'value'
}

if(typeof data.params === 'string') data.params = [];
console.log(data);

answered Jul 27, 2016 at 14:25

Nenad Vracar

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