Syntax - Tasty Web Development Treats STUMP'D - Coding Interview Questions
Sep 1, 2021
The hosts tackle quirky JavaScript interview questions, diving deep into first-class functions and the nuances of the Error object. They humorously clarify the differences between sets and weak sets while exploring event handling techniques like preventDefault. Key concepts such as minification and the significance of weak maps for tracking DOM elements are dissected with enthusiasm. The discussion is peppered with practical coding tips, making it both entertaining and informative for developers.
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First-Class Functions
- First-class functions in JavaScript are treated like any other variable.
- They can be stored in variables, passed as arguments, and returned from other functions.
Object.is Method
Object.iscompares two values for strict equality, similar to triple equals but with nuanced differences.- It handles special cases like signed zeros and NaN differently, ensuring true equality.
Error Object
- The
Errorobject helps track specific errors by creating new error instances. - Throwing new errors provides distinct tracking versus throwing existing errors.