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how to catch and throw error js

try {
  throw new Error('Whoops!')
} catch (e) {
  console.error(e.name + ': ' + e.message)
}
Comment

try...catch...throw javascript

const number = 40;
try {
    if(number > 50) {
        console.log('Success');
    }
    else {

        // user-defined throw statement
        throw new Error('The number is low');
    }

    // if throw executes, the below code does not execute
    console.log('hello');
}
catch(error) {
    console.log('An error caught'); 
    console.log('Error message: ' + error);  
}
Comment

JavaScript throw with try...catch

try {
    // body of try
    throw exception;
} 
catch(error) {
    // body of catch  
}
Comment

JavaScript Error Try Throw Catch

  <body>



	<div id="error"> </div> 

	<script>


		try{	
		if(x==1)
		{
		throw "x must not be 1";
		}
		}
		catch(err)
		{
		document.getElementById("error").innerHTML = err;
		}
		
		
		</script>
  </body>
Comment

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