Falsy Bouncer-freecodecamp Algorithm Topics

Source: Internet
Author: User

Falsy Bouncer (filter array false values)
  1. Requirements
    • Deletes all false values in the array. (in JavaScript, false values are,,,, false null 0 "" , undefined and NaN .) )
  2. Ideas
    • Use. Filter () to reject false values in an array
    • Use Boolea to set callback function to encounter true value return
  3. Code
      •  1  function   bouncer (arr) { 2  //  Please write your code here  3  function   Res (val) { 4  return   Boolean (val);  5  }  6  return   Arr.filter (res);  7  }  8  9  bouncer ([7, "ate", "", false , 9]); 
  4. RELATED LINKS
    • Https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Boolean
    • Https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/filter

Falsy Bouncer-freecodecamp Algorithm Topics

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