Strip away characters in array

Question

I am using a 3rd party script for uploading files and when I upload multiple files I get the names in this format:

[{"file":"0:/gIpVCEAe4eiW.jpg"},{"file":"0:/5yA9n2IfNh65.jpg"}]

I just want the actual file names. I wish I could post some code of what I have tried but I can't think of many options. I can't get .split alone to do what I want.

You want to check the documentation of the 3rd-party script I guess. Based on the information in your question we won't be much help. — Andy
– Andy, Commented Jan 20, 2019 at 15:05
@Andy, the documentation doesn't show you how to do it the way I want to do it which is to submit via Ajax. — user8463989
– user8463989, Commented Jan 20, 2019 at 15:05
@AshayMandwarya, those are the actual file names. Anything you upload is renamed with random characters like that ie: gIpVCEAe4eiW.jpg — user8463989
– user8463989, Commented Jan 20, 2019 at 15:06
Is your question, how do I remove 0:/ from the the values? — Andy
– Andy, Commented Jan 20, 2019 at 15:08

Andy · Accepted Answer · 2019-01-20 15:17:32Z

5

map over the array and return the replaced filename. You'll get a new array back.

const arr = [{"file":"0:/gIpVCEAe4eiW.jpg"},{"file":"0:/5yA9n2IfNh65.jpg"}];

const out = arr.map(obj =>  {
  return obj.file.replace('0:/', '');
});

console.log(out);

edited Jan 20, 2019 at 15:17

answered Jan 20, 2019 at 15:10

Andy

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7 Comments

stever Over a year ago

That's beautiful.

user8463989 Over a year ago

@Andy, that is working nicely, thank you. I am trying to insert this into mongo db but it is inserting it like gIpVCEAe4eiW.jpg, 5yA9n2IfNh65.jpg. Would I need to do something like destructuring in order to get each file name individually and not in an array?

user8463989 Over a year ago

@Andy, my database format is basically images: [ { name: { type: String } } ]

user8463989 Over a year ago

@Andy, fair enough. Will fiddle around and ask another question if necessary. Thanks for your answer, it was most helpful.

Andy Over a year ago

The promises code might look something like this.

|

PitchBlackCat · Accepted Answer · 2019-01-20 15:14:30Z

1

You can use Array.map to perform a transformation on each element in the array.

First we flatten the array of objects to an array of strings, next we cut off the 0:/ with a split

let files = [{"file":"0:/gIpVCEAe4eiW.jpg"},{"file":"0:/5yA9n2IfNh65.jpg"}]
let result = files
  .map(f => f.file)
  .map(f => f.split('0:/')[1])
  
window.alert(result.join(', '));

answered Jan 20, 2019 at 15:14

PitchBlackCat

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