Falsy Bouncer-freecodecamp Algorithm Topics

Falsy Bouncer (filter array false values)

2. Requirements
   • Deletes all false values in the array. (in JavaScript, false values are,,,, false null 0 "" , undefined and NaN .) ）
4. Ideas
   • Use. Filter () to reject false values in an array
   • Use Boolea to set callback function to encounter true value return
5. 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]); 

7. 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