Archive

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1. The Problems with for...in and JavaScript Arrays
2. Measuring JavaScript Performance with console.time
3. The Perils of Non-Local Mutation
4. Checking Date Equality in JavaScript
5. Detecting Arrays (and other subtypes) vs. Objects in JavaScript
6. Finding an Object's Size in JavaScript
7. Negating Predicate Functions in JavaScript
8. Using ECMAScript 6 Maps
9. Creating Objects Without Prototypes
10. Basic Inheritance with Object.create
11. Avoiding Problems with Decimal Math in JavaScript
12. Preventing Object Extensions in JavaScript
13. Sealing JavaScript Objects with `Object.seal`
14. Immutable Objects with `Object.freeze`
15. Retrieving Property Names with `Object.getOwnPropertyNames` and `Object.keys`
16. The `delete` Operator in JavaScript
17. Basic Inheritance with JavaScript Constructors
18. JavaScript's Primitive Wrapper Objects
19. Storing Metadata on Arrays in JavaScript
20. Ditching jQuery with `querySelectorAll`
21. Building Up Arrays with Array#concat
22. Object Equality in JavaScript
23. Truthy and Falsy Values in JavaScript
24. Emulating Block Scope in JavaScript
25. The Virtue of JavaScript Linting
26. Understanding the Module Pattern in JavaScript
27. The Problem with Testing for NaN in JavaScript
28. Finding Array Elements with Array#indexOf
29. Numbers and JavaScript's Dot Notation
30. Using JavaScript's Array Methods on Strings
31. JavaScript's void Operator
32. Creating Unwritable Properties with Object.defineProperty
33. Equals Equals Null in JavaScript
34. Filtering Arrays with Array#filter
35. Partial Application with Function#bind
36. Creating Bound Functions with Function#bind
37. Variable and Function Hoisting in JavaScript
38. An Introduction to IIFEs - Immediately Invoked Function Expressions
39. Determining if a String Contains a Substring in JavaScript
40. The Uses of 'in' vs 'hasOwnProperty'
41. An Introduction to Writing Your Own JavaScript Compatibility Shims
42. The Difference Between Boolean Objects and Boolean Primitives in JavaScript
43. Function functions
44. Using 'apply' to Emulate JavaScript's Upcoming Spread Operator
45. Invoking JavaScript Functions With 'call' and 'apply'
46. Testing Array Contents with Array#every
47. Using JavaScript's 'toString' Method
48. Boiling Down Arrays with Array#reduce
49. Using Duck Typing to Avoid Conditionals in JavaScript
50. Creating Chainable Interfaces in JavaScript
51. Testing Array Contents with Array#some
52. Making Deep Property Access Safe in JavaScript
53. Using Dispatch Tables to Avoid Conditionals in JavaScript
54. What are Prototype Properties and Methods?
55. Dealing with the Dangers of `this` in Constructors
56. Constructors in JavaScript
57. Transforming Arrays with Array#map
58. What is an Array?
59. Reordering Arrays with Array#sort
60. Arbitrary Parameters with the arguments Object
61. Default Parameters in JavaScript

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