Saved in:
| Corporate Author: | |
|---|---|
| Format: | Electronic Video |
| Language: | English |
| Published: |
[Place of publication not identified]
Packt Publishing
[2024]
|
| Edition: | [First edition]. |
| Subjects: | |
| Links: | https://learning.oreilly.com/library/view/-/9781837024452/?ar |
| Summary: | "Explore JavaScript like never before with an in-depth focus on variable declarations using VAR, LET, and CONST. This course starts with a historical overview, introducing foundational concepts like execution contexts, scope, and the intriguing ""temporal dead zone."" You'll unravel the mysteries of JavaScript's unique behaviors, from hoisting and re-declaration to the rules governing each variable type. Progressing through hands-on examples, you'll learn how JavaScript processes and executes code. Understand global and local scopes, block and module scopes, and the critical differences between lexical and dynamic scoping. Each concept is paired with real-world examples and debugging strategies to solidify your learning and enhance your coding efficiency. Conclude your journey with advanced topics such as using Object.freeze() for immutability, leveraging LET and CONST for safer, modern development, and understanding edge cases where VAR still holds relevance. Whether you're polishing your JavaScript skills or preparing for a career leap, this course equips you with the knowledge to write precise, scalable, and efficient code. To access the supplementary materials, scroll down to the 'Resources' section above the 'Course Outline' and click 'Supplemental Content.' This will either initiate a download or redirect you to GitHub. What you will learn Explain the lifecycle of JavaScript variables in various scopes Identify differences in behavior of VAR LET and CONST effectively Debug variable issues using execution context and call stack tools Apply LET and CONST to write safer and more efficient JavaScript Explore immutability techniques with CONST and Object.freeze Compare lexical and dynamic scoping with practical examples Audience This course is designed for JavaScript developers seeking to deepen their understanding of variable declarations, scoping, and execution contexts. It is ideal for those with a foundational knowledge of JavaScript syntax and programming principles, who are ready to explore advanced concepts like the temporal dead zone, lexical environments, and modern debugging techniques. Whether you're a front-end or back-end developer, this course will help you write cleaner, safer, and more efficient code. About the Author SkillZone: In today's rapidly evolving workplace, it is imperative to make sure you have the skills and expertise required to succeed. SkillZone has a simple goal - teaching complicated concepts in an effortless way. They are Johannesburg-based and create quality, easy-to-understand eLearning solutions. They ensure that the learning materials and delivery approach are aligned to meet intended outcomes and address your specific training needs without covering topics that may be unnecessary or irrelevant. Their goal is to help you with in-depth learning whilst avoiding the pitfalls that they discovered the hard way.". |
| Item Description: | Online resource; title from title details screen (O'Reilly, viewed December 30, 2024) |
| Physical Description: | 1 Online-Ressource (1 video file (5 hr., 20 min.)) sound, color |
| ISBN: | 9781837024452 1837024456 |
Staff View
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| spelling | Mastering JavaScript variable declarations insights into VAR, LET, and CONST in 2025 [First edition]. [Place of publication not identified] Packt Publishing [2024] 1 Online-Ressource (1 video file (5 hr., 20 min.)) sound, color zweidimensionales bewegtes Bild tdi rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Online resource; title from title details screen (O'Reilly, viewed December 30, 2024) "Explore JavaScript like never before with an in-depth focus on variable declarations using VAR, LET, and CONST. This course starts with a historical overview, introducing foundational concepts like execution contexts, scope, and the intriguing ""temporal dead zone."" You'll unravel the mysteries of JavaScript's unique behaviors, from hoisting and re-declaration to the rules governing each variable type. Progressing through hands-on examples, you'll learn how JavaScript processes and executes code. Understand global and local scopes, block and module scopes, and the critical differences between lexical and dynamic scoping. Each concept is paired with real-world examples and debugging strategies to solidify your learning and enhance your coding efficiency. Conclude your journey with advanced topics such as using Object.freeze() for immutability, leveraging LET and CONST for safer, modern development, and understanding edge cases where VAR still holds relevance. Whether you're polishing your JavaScript skills or preparing for a career leap, this course equips you with the knowledge to write precise, scalable, and efficient code. To access the supplementary materials, scroll down to the 'Resources' section above the 'Course Outline' and click 'Supplemental Content.' This will either initiate a download or redirect you to GitHub. What you will learn Explain the lifecycle of JavaScript variables in various scopes Identify differences in behavior of VAR LET and CONST effectively Debug variable issues using execution context and call stack tools Apply LET and CONST to write safer and more efficient JavaScript Explore immutability techniques with CONST and Object.freeze Compare lexical and dynamic scoping with practical examples Audience This course is designed for JavaScript developers seeking to deepen their understanding of variable declarations, scoping, and execution contexts. It is ideal for those with a foundational knowledge of JavaScript syntax and programming principles, who are ready to explore advanced concepts like the temporal dead zone, lexical environments, and modern debugging techniques. Whether you're a front-end or back-end developer, this course will help you write cleaner, safer, and more efficient code. About the Author SkillZone: In today's rapidly evolving workplace, it is imperative to make sure you have the skills and expertise required to succeed. SkillZone has a simple goal - teaching complicated concepts in an effortless way. They are Johannesburg-based and create quality, easy-to-understand eLearning solutions. They ensure that the learning materials and delivery approach are aligned to meet intended outcomes and address your specific training needs without covering topics that may be unnecessary or irrelevant. Their goal is to help you with in-depth learning whilst avoiding the pitfalls that they discovered the hard way.". JavaScript (Computer program language) Application software Development Instructional films Nonfiction films Internet videos Packt Publishing, Verlag pbl SkillZone (Firm), MitwirkendeR ctb |
| spellingShingle | Mastering JavaScript variable declarations insights into VAR, LET, and CONST in 2025 JavaScript (Computer program language) Application software Development |
| title | Mastering JavaScript variable declarations insights into VAR, LET, and CONST in 2025 |
| title_auth | Mastering JavaScript variable declarations insights into VAR, LET, and CONST in 2025 |
| title_exact_search | Mastering JavaScript variable declarations insights into VAR, LET, and CONST in 2025 |
| title_full | Mastering JavaScript variable declarations insights into VAR, LET, and CONST in 2025 |
| title_fullStr | Mastering JavaScript variable declarations insights into VAR, LET, and CONST in 2025 |
| title_full_unstemmed | Mastering JavaScript variable declarations insights into VAR, LET, and CONST in 2025 |
| title_short | Mastering JavaScript variable declarations |
| title_sort | mastering javascript variable declarations insights into var let and const in 2025 |
| title_sub | insights into VAR, LET, and CONST in 2025 |
| topic | JavaScript (Computer program language) Application software Development |
| topic_facet | JavaScript (Computer program language) Application software Development Instructional films Nonfiction films Internet videos |
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