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Nodejs-Interview-questions-basic-->View question

Can I use multiple catch bloack in nodejs? -Nodejs

Can I use multiple catch bloack in nodejs? -Nodejs If so how can I do that explain with sample codes for the same.


Asked On2021-10-13 10:56:59 by:exotic

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No the multiple catch blocks are not existing in javascript instead you could achive the same with if else statement something like this.

try {
  throw 1; 
}
catch(e) {
    if (e instanceof ReferenceError) {
       // ReferenceError action here
    } else if (typeof e === "string") {
       // error as a string action here
    } else {
       // General error here
    }
}
finally {}

Answerd on:2021-10-13 Answerd By:batsam22

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No, multiple catch blocks cannot be executed. Once first catch block is catched, it will not read the next block. Yes we can define multiple catch blocks. The only condition we have to keep in mind is, we should define all derived class exceptions catch block first and then base class exception.

Answerd on:2022-07-04 Answerd By:Suraj125

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No, multiple catch blocks cannot be executed. Once first catch block is catched, it will not read the next block. Yes we can define multiple catch blocks. The only condition we have to keep in mind is, we should define all derived class exceptions catch block first and then base class exception.

Answerd on:2022-07-04 Answerd By:Suraj125

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