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const CategoryName = {
  RecoveryFlowRequest: 'RECOVERY_FLOW_REQUEST',
  RecoveryFlowAckTimeout: 'RECOVERY_FLOW_ACK_TIMEOUT',
  CKAutoSave: 'CK_AUTO_SAVE',
  CKVersionMismatch: 'CK_VERSION_MISMATCH',
  CKInternalConnection: 'CK_INTERNAL_CONNECTION',
  CKComment: 'CK_COMMENT',
  CKCollabComment: 'CK_COLLAB_COMMENT',
  CKNameOfUndefined: 'CK_NAME_OF_UNDEFINED',
  CKSessionNotFound: 'CK_SESSION_NOT_FOUND',

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Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

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class Component {
  constructor(value) {
    this.value = value;
  }

  @autobind
  method() {
    return this.value;
  }
}

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class D extends A {

}

console.log(D.prototype);
// A {constructor: ƒ}

console.log(D.prototype.__proto__);
// {constructor: ƒ, handleLongClick: ƒ}

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class C extends A {
  handleClick() {
    super.handleClick();

    console.log("C.handleClick");
  }
}

console.log(C.prototype);
// A {constructor: ƒ, handleClick: ƒ}

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class B extends A {
  handleClick = () => {
    super.handleClick();

    console.log("B.handleClick");
  }

  handleLongClick() {
    super.handleLongClick();

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class A {
  handleClick = () => {
    console.log("A.handleClick");
  }

  handleLongClick() {
    console.log("A.handleLongClick");
  }
}

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class A {
  constructor() {
    this.counter = 0;

    this.handleClick = () => {
      this.counter++;
    };
  }
  
  handleLongClick() {

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class A {
  static color = "red";
  counter = 0;
  
  handleClick = () => {
    this.counter++;
  }
  
  handleLongClick() {
    this.counter++;

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class ComponentA extends Component {
  handleClick = () => {
    // ...
  }

  render() {
    // ...
  }
}