How Do I Access JSON Properties Containing Hyphens in JavaScript?

Accessing JSON Properties with Dash Characters

When retrieving values from a JSON object, it's important to note that accessing properties with hyphenated names can lead to errors. For instance, consider the following JSON object:

{
"profile-id":1234,
"user_id":6789
}

Attempting to access the jsonObj.profile-id property results in the following error:

ReferenceError: "id" is not defined

This issue arises because the "-" character in the property name is not allowed in JavaScript identifiers. To resolve this, you can access the property using brackets:

jsonObj["profile-id"]

This approach correctly retrieves the value of the "profile-id" property, which is 1234 in this case. By enclosing the property name in brackets, you allow JavaScript to properly interpret it as a string, regardless of any special characters it may contain.

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