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Access JavaScript object property with hyphen

by Mike
Question:
How to access JavaScript object property with hyphen?
Answer:
let userBirthDate = user["birth-date"];
Description:

If you need to access an object property in JavaScript that contains a hyphen, dash '-' , or space ' ' you can use the bracket notation syntax: object['property-name'] .

In general there are 2 types of property accessors in JavaScript that provide access to an object's properties:

  • dot notation:  The property must be a valid JavaScript identifier. Syntax: object.property
  • bracket notation:  The property name is just a string or Symbol. So, it can be any string. Syntax: object['property']

 

Reference:
JavaScript property accessors reference
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access, object, property, hyphen, dash, space, object key, javascript
Technical term:
Access JavaScript object property with hyphen
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