[TIL] 0726

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Today I Learnt 

 

 

Javascript :

 

Function :

Object:

Callback ,

 promise ,

async/await

 

callstack,

event loop,

실행컨텍스트(this)

 

prototype:  Biggest differenct with Java(class based) ,  javascript(prototype based)

 

 

map, filter ,reduce,

 

 

jest :

Jest if you want to choose the test 

 

you can use fit to skip other test or 

 

npm install --save-dev jest-watch-typeahead

package.json:

 "jest": {
    "watchPlugins": [
      "jest-watch-typeahead/filename",
      "jest-watch-typeahead/testname"
    ]
  },

using jest-watch-typehead : 

 

you can select the test by the name / filename

 

 

 

React :