html table based upon json object tree

2018-06-09 04:11:07

This question already has an answer here:

Check if object is array? 38 answers

Checking typeof key === 'array' is incorrect since for arrays typeof will return "object" . You can try to use instanceof instead:

if (key instanceof Array) {
    // do something
} else {
    // do another stuff
}

But this will fail if your JSON was created in another frame. Another option is to check toString()

Object.prototype.toString.call(key).indexOf('Array') > 0

or to check

Array.isArray(key)

but it does not supported by all browsers.

Description of typeof you can see here https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Operators/typeof

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