Frontendmasters Courses

14. Rest & Spread
Maximiliano demonstrates using the rest and spread operators in JavaScript. The rest operator is used to collect multiple arguments into an array, while the spread operator is used to spread the contents of an array into another array.
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456 views18:43

15. Destructuring
Maximiliano explains how to destructure objects and arrays, and provides examples of using destructuring in function arguments. He also discusses the potential complexity and readability issues that can arise from overusing destructuring.
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468 views18:43

2:58

16. Default Values
Maximiliano explains that in JavaScript, function arguments are not mandatory and can be called with any number of arguments. He also demonstrates how to set default values for function parameters, making the code cleaner and more concise.
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460 views18:43

17. Language Enhancements
Maximiliano discusses language enhancements that have been introduced after ES6. He covers topics such as the global `this` object, trailing commas in arrays and objects, optional catch binding, converting a function to a string, and changes in class declarations.
- https://firtman.github.io/projs/
- https://firtman.github.io/projs/slides.pdf
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479 views18:44

4:12

18. Object Rest & Spread Operators
Maximiliano demonstrates how the rest operator can be used to collect the remaining properties of an object, and how the spread operator can be used to combine properties from multiple objects into a new object. He also mentions that these operators can be used to create quick decorators by spreading properties onto an existing object.
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487 views18:44

4:08

19. Nullish Coalescing
Maximiliano introduces the nullish coalescing operator and explains that it is used to check if a value is null or undefined and return a default value if it is.
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482 views18:44

20. Optional Chaining, Logical, and Exponential Operators
Maximiliano demonstrates how the optional chaining operator can be used to handle null or undefined values in JavaScript. He also briefly discusses the logical assignment operator and the double asterisk operator for exponentiation.
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476 views18:44

21. Private Properties & Methods
Maximiliano explains the concept of private class variables and how to define private variables using a hash as part of the identifier. He also mentions that in ES2022+, it is possible to declare public or private fields directly in the class body without using the "this" keyword.
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485 views18:44

4:09

22. Static Fields & Initialization Blocks
Maximiliano demonstrates how to define static fields and methods. He also introduces the concept of an initialization block, which is a block of code that is executed only once when the class is being parsed.
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502 views18:44

4:11

23. Object Management
Maximiliano discusses various tools available in the object class in JavaScript such as object.assign, object.entries, object.values, object.fromEntries, object.hasOwnProperty, and object.is.
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505 views18:44

24. String Padding, Trimming, & Matching
Maximiliano demonstrates various string methods in JavaScript, including startsWith, endsWith, includes, repeat, padStart, padEnd, trimStart, trimEnd, match, and matchAll. He also demonstrates how to use destructuring in combination with the matchAll method.
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503 views18:44

3:40

25. BigInt & Number Methods
Maximiliano discusses the BigInt object in JavaScript, which allows for the representation of whole numbers larger than the maximum number that JavaScript can handle. He also mentions other methods and constants related to numbers, such as isFinite, isInteger, and MAX SAFE INTEGER.
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503 views18:44

26. Arrays, Sets, & Maps
Maximiliano provides a recap of ES6 collections such as arrays, sets, maps, weak sets, and weak maps. He also discusses the concept of strong references and weak references in JavaScript memory management.
- https://firtman.github.io/projs/
- https://firtman.github.io/projs/slides.pdf
#lesson

520 views18:44