Quickly get the front-end JS interview-Chapter 1 Introduction to the front-end interview

Chapter One Introduction to Front-end Interview

(This chapter is an outline part)

1. Important knowledge

2. Introduction of knowledge

3. Overview

4. Course Arrangement

V. About the interview

Six, look at a few interview questions

Seven, learn trilogy efficiently

8. From what aspects to sort out

9. Knowledge System

10. Mind Map of Knowledge System

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1. Important knowledge

   1. ES6 class

   2. Promise

   3. Modular

   4. Handwritten code questions

   5. webpack

 6. Babel

2. Introduction of knowledge

1. Basic knowledge

1. Prototype chain
2. Scope closure
3. Asynchronous single thread

2. API

1. GOOD GIFT
2. Ajax cross domain
3. Event storage

3. Development environment

1. Version management
2. Debug capture
3. Package and build

4. Operating environment

1. Page rendering
2. Performance optimization
3. Web security

3. Overview

1. doing what? Explain the front-end JS interview questions
2. What parts? Basic knowledge, JS Web API, development environment, operating environment
3. technology? Prototype, scope, asynchronous, Ajax, event, webpack

4. Course Arrangement

1. JS basic knowledge
2. JS Web API
3. Development environment
4. Operating environment
5. Knowledge system summary
6. Interview skills

V. About the interview

1. Grassroots Engineer: Basic Knowledge
2. Senior engineer: basic knowledge + project experience
3. Architect: Solution capabilities

Six, look at a few interview questions

• What types can typeof judge? (Test center: JS variable type)
• When to use === When to use ==? (Test center: Mandatory type conversion)
• Window. What is the difference between Onload and DOMContentLoaded? (Test center: page loading process)
• JS creates 10 <a> tags, and the corresponding serial number pops up when clicked (test site: JS scope)
• Handwriting throttling throttle, anti-shake debounce? (Test center: performance experience optimization)
• What problem did Promise solve? (Test center: JS asynchronous)

Seven, learn trilogy efficiently

    Accurate knowledge system; deliberate training; timely feedback

    Knowledge system: a structured range of knowledge, covering all knowledge points, organized and easily expandable

8. From what aspects to sort out

    W3C standard

    ECMA262 standard

    Development environment

    Operating environment

9. Knowledge System

   JS basic syntax (variable definition, variable type judgment, function, logical operation, closure, promise)

   JS-Web-API (get web page elements, get URL, DOM manipulation, Ajax request, binding event)

   Development environment (version, engineering)

   Operating environment (web page loading, performance optimization, security issues)

10. Mind Map of Knowledge System

For the course, please refer to: Mo Ke. "Catch up the precious time before the interview and quickly get the front-end JavaScript interview"