CODEWITHSUNDEEP
javascript
Zaq
Zaq

Reputation: 35

How to remove the following/trailing comma on the final value (javascript)?

As the title suggests I'm trying to remove the last "," that appears when i return my function relative to a specific inputted name: For example I'm getting the following returned: "cat,bird,tiger, " when I'm trying to return "cat,bird,tiger " i have tried string = string.replace(/,\s*$/, ""); but this replaces all commas. here is my current code.

let string = "";

for(let i = 0; i < result.length; i++) {
  console.log(result[i].animal)
  string = string + result[i].animal + ",";
}
if(string != ""){
console.log(string);
}
else{
  console.log("NOT FOUND");
}

Upvotes: 1

Views: 414

Answers (2)

MBadrian
MBadrian

Reputation: 409

i use this code for everywhere i want have like this string

 item,item,item,item,....,item

in first time i didn't add any comma and after then first add comma and then add item 

if(string!=""){
        string+=","
      }


let string = "";

for(let i = 0; i < result.length; i++) {
  if(string!=""){
    string+=","
  }
  console.log(result[i].animal)
  string = string + result[i].animal ;
}
if(string != ""){
console.log(string);
}
else{
  console.log("NOT FOUND");
}

Upvotes: 0

CertainPerformance
CertainPerformance

Reputation: 370789

Map the array to the animal properties, then join by a comma instead:

const string = result.map(({ animal }) => animal).join(',');

To tweak your original code, add a comma to the beginning of the concatenated string if string is not empty:

let string = '';
for(let i = 0; i < result.length; i++) {
  string += (string ? ',' : '') + result[i].animal;
}

Upvotes: 3

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