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Премиум
  • Урок 1. 00:04:32
    Everything you need to know about VAR
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    Everything you need to know about LET
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    Constant
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    TDZ: Temporal Dead Zone
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    Real-life application of LET
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    Who has the highest priority? Variable name, function name or argument name?
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    Arguments, caller, callee
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    Three ways to redirecting THIS of a funciton
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    Higher-order function and currying
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    Currying and closure
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    Closure
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    Real-life application of Closure
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    Syntax of arrow function
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    THIS in an arrow function
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    Application of arrow function
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    Destructure array
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    Destructure object
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    Destructure string
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    Destructure number, boolean, null and undefined
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    Destructure function arguments
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    Map basics
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    Iterate over MAP using FOR OF
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    SET basics
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    Application of SET
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    Introduction to Symbol
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    How to create a Symbol value
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    Symbol.for()
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    Use Symbol value as the property name
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    Well-known Symbol
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    The iteration protocol: the iterable protocol and the iterator protocol
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    Create your own iterator
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    Generator
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    Application of generator
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    The next() method
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    yield *
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    Introduction to Promise
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    The Promise constructor
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    The application of Promise
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    The then_able object
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    Promise.resolve() and Promise.reject()
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    Limits of Promise.resolve() and Promise.reject()
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    Process several promises together: .all(), .allSettled() and .race()
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    async await
  • Урок 44. 00:02:15
    async await: supplement
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    Reflect and its methods
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    What is Proxy
  • Урок 47. 00:02:09
    Create private properties using the GET trap
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    The SET trap
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    The has and deleteProperty trap
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    Use a proxy object as the prototype
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    The defineProperty trap
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    The apply trap
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    The constructor trap
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    Revocable proxy
  • Урок 55. 00:09:03
    Real-life Application
  • Урок 56. 00:05:18
    JSON
  • Урок 57. 00:05:47
    Introduction to CommonJS
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    The mechanism of CommonJS: the module object
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    Circular dependency
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    How CommonJS handles cache: require.cache
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    ES6 import and export
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    How to 'import'
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    Named export
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    Default export
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    The difference between named export and dynamic export: dynamic reference
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    Use ESM in browser
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    How to enable the strict mode
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    Changes brought by the strict mode
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    __proto__
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    The prototype property of a constructor
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    How our own constructor uses the prototype chain
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    Real-life application of prototype chain
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    Introduction to the Object constructor
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    Object.values(), Object.keys(), Object.entries(), Object.is()
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    Object.setPrototypeOf() and Object.assign()
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    Object.create() Part 1
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    Object.create() Part 2
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    Property attributes
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    The descriptor object
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    Create properties with customized attributes
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    Object.preventExtensions()
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    Object.seal()
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    Object.freeze()
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    Getter and Setter introduction
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    Create accessors using Object.defineProperty()
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    Two-way data binding using getter and setter
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    How to define your own constructor function
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    Prototype and static properties and methods
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    Review, comparison and summary
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    Private properties in constructors
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    How to define getter and setter in a constructor
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    Class introduction
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    How to define properties
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    How to define methods: instance, prototype and static
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    Fields
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    Private properties in classes
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    Extend properties
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    Extend methods
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    Application: extending the Array() constructor
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    static get [Symbol.species]
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    new.target: control the instantiation location
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    Make the parent class 'un-newable'
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    Mixin
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    Data structure: Queue, Stack, and Heap
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    Thread and Process, sync and async, blocking and non-blocking
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    Recursion and stack overflow
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    Macro tasks, micro tasks, and their queues
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    Event loop, micro task queue, macro task queue
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    Interview challenges: predict the result of the following programs
  • Урок 110. 00:01:04
    process.nextTick()
  • Урок 111. 00:03:01
    What is tail call optimization
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    Real-life application of tail call optimization
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    Encapsulation, inheritance, polymorphism
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    Differences between a primitive prop. value and a reference-type prop. value
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    Douglas Crawford's program: recreate Object.create()
  • Урок 116. 00:01:17
    The creative combination of a constructor and the call or apply method
  • Урок 117. 00:01:28
    The genius combination of two constructors
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    "Parasitic" inheritance
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    instanceof and typeof
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    '"Shallow" copy an object
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    "Deep" copy an object
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    "Deep" assign an object into another one
  • Урок 123. 00:02:52
    JavaScript garbage collection and memory leak
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    Circular reference, reference counting and mark and sweep
  • Урок 125. 00:03:34
    Bit, byte, word, memory address and byte addressing
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    Basic encoding knowledge
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    Memory address and byte addressing
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    Bit width
  • Урок 129. 00:03:37
    Array basics
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    How does an array affect THIS in a function or method
  • Урок 131. 00:02:07
    Concatenate two arrays, operating the first and last element
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    Remove duplicated elements using two methods
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    Check the entire array and find the matching element
  • Урок 134. 00:02:44
    How to remove and replace designated elements and retrieve an array segment
  • Урок 135. 00:02:23
    How to find the max and min element and how to reorganize array elements
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    Array with "holes"
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    String basics
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    Calculating word count using the split() method
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    Extract a section of a string
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    Replace a section of a string
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    Highlight selected texts
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    Data types in JavaScript
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    Type coercion, wrapper object, explicit and implicit typecasting
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    Compare NULL, undefined, and NaN
  • Урок 145. 00:02:45
    The problems with typeof and instanceof
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    Create a data type checker by combining typeof and instanceof
  • Урок 147. 00:01:39
    Checking data type using the constructor property
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    Checking data type using the toString method and the call or apply method
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    Scope chain and closure
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    Lexical scoping vs. dynamic scoping
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    Switching two variable values without creating a new variable
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    Count how many times each character of a string has been used
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    Find the most and least frequently used character
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    Count words
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    Find the most and least frequently words
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    Bubble sorting introduction
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    Bubble sorting application
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    Bubble sort "backwards"
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    Reorganize array elements in ascending and descending order using bubble sorting
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    Improve the bubble sorting program by ending the loop at the earliest timing
  • Урок 161. 00:02:10
    The problem with the inner FOR loop
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    Avoid unnecessary comparisons using rightSortBorder
  • Урок 163. 00:01:21
    LeftSortBorder: avoiding unnecessary comparisons while iterating backwards
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    Cocktail sorting
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    Add the left and right sort border to avoid unnecessary comparisons
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    Quick sorting introduction
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    Quick sorting demo
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    Counting sorting introduction
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    Deal with duplicated elements
  • Урок 170. 00:02:22
    Improve efficiency Part 1
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    Improve efficiency Part 2
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    Insertion sorting introduction
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    Insertion sort demo
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    Bucket sorting introduction
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    Bucket sorting demo
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    Selection sort introduction
  • Урок 177. 00:03:24
    Selection sort demo
  • Урок 178. 00:07:19
    Time and space complexity: big O notation
  • Урок 179. 00:07:58
    Linear structures and how they are stored in memory
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    Non-linear data structure
  • Урок 181. 00:03:10
    How to realize binary heap in JavaScript
  • Урок 182. 00:03:59
    Realize the binary heap structure using JavaScript codes
  • Урок 183. 00:01:46
    The heap sorting algorithm intro
  • Урок 184. 00:02:02
    The heap sorting algorithm demo
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    Introduction to the Observer pattern
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    Managing several page elements using the Observer pattern
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    Two-way data binding using the Observer pattern
  • Урок 188. 00:05:04
    The two "shocking" forms of FOR loop
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    Challenge: iterating over the array backwards