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JavaScript: The Tricky Bits

via LinkedIn Learning

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Details

No Longer Offered

Provider

LinkedIn Learning
Pricing

Free Trial Available
Languages

English
Certificate

Certificate Available
Effort

1 hour 58 minutes
Sessions

No Longer Offered
Level

Intermediate

Found in

Part of

Improve Your JavaScript Language Skills

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Discover JavaScript techniques that make a huge difference in your work but are not obvious from the outset.

Syllabus

Introduction

JavaScript can get tricky
What you should know
Using the exercise files

1. Improving on Loops

Pain point: Sequential for loops become tedious
Solution: Three alternatives
Pain point: Processing arrays with loops is inelegant
Solution: filter(), map(), and reduce()
Challenge: Iterate differently
Solution: Iterate differently

2. Objects Can Confuse

Pain point: Copied objects are not actually copies
Solution: JSON.stringify() and JSON.parse()
Pain point: The value of this, like, and always
Solution: bind()
ES6+ solution: Arrow functions
Challenge: Objects of hazard
Solution: Objects of hazard

3. Oh Functions, My Functions

Pain point: Send extra parameters to an event handler
Solution: bind() again
Pain point: Function signature doesn’t accept arrays
Solution: Function.prototype.apply()
Pain point: Refactoring function signatures
Solution: Objects for arguments
Challenge: Story generator
Solution overview: Story generator
Solution walkthrough: Story generator

Conclusion

Next steps and thank you

Taught by

Joe Chellman

Reviews

4.6 rating at LinkedIn Learning based on 186 ratings

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