Question

How to filter array in JavaScript ES6

Answer 1

const arr = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; 

const result = arr.filter(n => n > 6); 

console.log(result); 

  
  
       
/*
run:
     
[ 7, 8, 9 ]
   
*/

 

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Answer 2

const arr = ['Node.js', 'JavaScript', 'C++', 'C', 'Python']; 

const result = arr.filter(s => s.length > 5);

console.log(result); 

  
  
       
/*
run:
     
[ 'Node.js', 'JavaScript', 'Python' ]
   
*/

 

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Answer 3

const arr =  [
    {
      id: 1234,
      mission: 'Read a book',
      completed: false
    },
    {
      id: 9872,
      mission: 'Watch a movie',
      completed: false
    },
    {
      id: 7389,
      mission: 'Write the code',
      completed: true
    },
    {
      id: 5621,
      mission: 'Play with kids',
      completed: true
    },
  ]

const result = arr.filter(user => user.id > 3333);

console.log(result); 

  
  
       
/*
run:
     
[
  { id: 9872, mission: 'Watch a movie', completed: false },
  { id: 7389, mission: 'Write the code', completed: true },
  { id: 5621, mission: 'Play with kids', completed: true }
]
   
*/

 

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