How to find multiple string items in an array and delete the string that matches the search and return the count of the array?

Question

var stringsToSearch = ["cat", "dog", "rat"];
fromThisArray = ["rabbit", "snake", "cow", "cat", "dog"];

If stringToSearch is found in fromThisArray, It should delete those strings and return the count of the array.

Similar question were asked in this forum but they are finding single string but my requirement was to search multiple string and delete those string.

There are lot of questions of similar type on SO. Just do some research work — Kiran Shinde
– Kiran Shinde, Commented Dec 30, 2016 at 6:22
Please format your code and add more description to the question. — thedeliciousmuffin
– thedeliciousmuffin, Commented Dec 30, 2016 at 6:22
Possible duplicate of Javascript array search and remove string? — Durgpal Singh
– Durgpal Singh, Commented Dec 30, 2016 at 6:24
No Efforts posted duplicate. question available on SO. stackoverflow.com/questions/16312528/… — Shoaib Konnur
– Shoaib Konnur, Commented Dec 30, 2016 at 6:28

Jyothi Babu Araja · Accepted Answer · 2016-12-30 06:26:28Z

0

By using filter and indexOf

var stringsToSearch = ["cat", "dog", "rat"];

var fromThisArray = ["rabbit", "snake", "cow", "cat", "dog"];

var filteredArray = fromThisArray.filter(function(item){
  return stringsToSearch.indexOf(item) < 0;
});

console.log(filteredArray);

answered Dec 30, 2016 at 6:26

Jyothi Babu Araja

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2 Comments

santhosh Over a year ago

Thank you every one for your time on this and all answers were close to my requirements.

Jyothi Babu Araja Over a year ago

@skellysanthu Glad, this helped you. Happy coding

Aravinder · Accepted Answer · 2016-12-30 06:25:37Z

0

var stringsToSearch = ["cat", "dog", "rat"];
var fromThisArray = ["rabbit", "snake", "cow", "cat", "dog"];

for(var i=0; i<stringsToSearch.length; i++){
    var idx = fromThisArray.indexOf(stringsToSearch[i]);
    if(idx > -1){
        fromThisArray.splice(idx, 1);
    }   
}

console.log(fromThisArray, fromThisArray.length);

answered Dec 30, 2016 at 6:25

Aravinder

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Comments

Azad · Accepted Answer · 2016-12-30 06:27:18Z

0

function uniqueCount(arr, stringsToSearch ){

  for(var i = 0; i < stringsToSearch.length ; i++){
    while(arr.indexOf(stringsToSearch[i])> -1){
       arr.splice(i,1);//remove
    }
  }
  return arr.length;
}

var stringsToSearch = ["cat", "dog", "rat"];
var fromThisArray = ["rabbit", "snake", "cow", "cat", "dog"];

//call the function 
console.log(uniqueCount(fromThisArray , stringsToSearch ));

answered Dec 30, 2016 at 6:27

Azad

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