JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - hasOwnProperty, the in Keyword, and Delete in Jav

JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - hasOwnProperty, the in Keyword, and Delete in Jav

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial covers how to check if a property exists in a JavaScript object using the hasOwnProperty method and the 'in' keyword. It also demonstrates how to delete a property from an object using the delete keyword. The tutorial includes examples with a restaurant object and emphasizes the importance of understanding these methods for handling objects with large amounts of data. The session concludes with a prompt for an upcoming exercise to reinforce the concepts learned.

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2 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the significance of using string format when checking for a property in an object.

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the output when checking for a non-existent property in an object?

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