What causes the output of undefined when trying to access an array object by its name?

What causes the result to be undefined when attempting to access a string in this manner:

obj.prop = JSON.stringify(otherObj);

However, accessing it like this:

prop = JSON.stringify(otherObj.propertyIwant);

yields the desired value without any issues ??

Answer №1

When you use the stringify function on an object like obj, it turns the object into a string. This means that trying to access a specific property directly on the string, as in obj.prop, will result in undefined.

In the second scenario you presented, if otherObj is indeed a valid object, then by stringifying one of its properties and storing it in a variable, you are effectively converting that property into a string for further manipulation.

Answer №2

Rob, what is the reason for transforming a JSON object into a string?

You can directly access the property by name and save it in any variable.

Solution:

var jObject = {name : 'Rob',age: 20};
var myVar = jObject.age;

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