Match specific text in array property value then replace and only output replaced values

Question

I want to filter the following array by values. The values including '-usd' need to be replaced without '-usd'. After that I want to only output that replaced values! and not horse or mouse. How can I do this?

So the filtered array may look like:

arr = [
          {animal: 'cat', price: 150},
          {animal: 'dog', price: 350},
        ]

So far i made this:

arr = [
      {animal: 'cat-usd', price: 150},
      {animal: 'dog-usd', price: 350},
      {animal: 'horse', price: 5000},
      {animal: 'mouse', price: 50}
    ]


    var filter = arr.map((i, k) => {
      var ret = i.animal.replace(/-USD/gi, '')
      return ret;
    })

    console.log(filter)

JSBIN

Mukesh Soni · Accepted Answer · 2018-05-14 13:25:43Z

3

you can first filter the ones which have -usd in them and then use your map function

var filter = arr.filter(i => i.animal.indexOf('-usd') >= 0).map((i, k) => {
      var ret = i.animal.replace(/-USD/gi, '')
      return ret;
    })

edited May 14, 2018 at 13:25

answered May 14, 2018 at 13:22

Mukesh Soni

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1 Comment

Mukesh Soni Over a year ago

replace that with .indexOf('-usd') >= 0

Ankit Agarwal · Accepted Answer · 2018-05-14 13:25:46Z

1

Check for i.animal.indexOf('-usd') !== -1 in your filter method.

arr = [
  {animal: 'cat-usd', price: 150},
  {animal: 'dog-usd', price: 350},
  {animal: 'horse', price: 5000},
  {animal: 'mouse', price: 50}
];

var filter = arr.filter((i, k) => {
  if(i.animal.indexOf('-usd') !== -1){
    i.animal = i.animal.replace(/-USD/gi, '');
    return i;
  }
})

console.log(filter)

answered May 14, 2018 at 13:25

Ankit Agarwal

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