How remove array items using data from other array

Question

I'm looking for a way, how remove array items with compare of other array.

keys = ['201','300'];

obj[0]=['someval','somename','201'];
obj[1]=['someval','somename','241'];
obj[2]=['someval','somename','300'];
obj[3]=['someval','somename','230'];

Now, how can i have obj array with elements equal to keys array ? I want to archive this:

obj[0]=['someval','somename','201'];
obj[1]=['someval','somename','300'];

Thank You for help.

Arun P Johny · Accepted Answer · 2015-05-22 09:38:52Z

1

You can use .filter() and check whether the 3rd item in the inner array is present in the keys array

keys = ['201', '300'];

var obj = []
obj[0] = ['someval', 'somename', '201'];
obj[1] = ['someval', 'somename', '241'];
obj[2] = ['someval', 'somename', '300'];
obj[3] = ['someval', 'somename', '230'];

obj = obj.filter(function(item) {
  return keys.indexOf(item[2]) > -1
})

console.log(obj)

answered May 22, 2015 at 9:38

Arun P Johny

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4 Comments

Arun P Johny Over a year ago

@user2610146 what do you mean by custom array.... which part of the array is custom

user2610146 Over a year ago

obj array may have more values, example: obj[3] = ['someval', 'somename','testval' '230','other'];

Arun P Johny Over a year ago

do you know which index in the array to be checked

user2610146 Over a year ago

And what will happens, when obj will be array like obejct instead of array ?

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