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try, catch, throw, finally

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Umesh Jadhav answered on July 19, 2022 Popularity 9/10 Helpfulness 1/10

answer try, catch, throw, finally

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try, catch, throw, finally

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<body>

<h2>JavaScript try catch</h2>

<p>Please input a number between 5 and 10:</p>

<input id="demo" type="text">
<button type="button" onclick="myFunction()">Test Input</button>

<p id="p01"></p>

<script>
function myFunction() {
  const message = document.getElementById("p01");
  message.innerHTML = "";
  let x = document.getElementById("demo").value;
  try { 
    if(x.trim() == "")  throw "is empty";
    if(isNaN(x)) throw "is not a number";
    x = Number(x);
    if(x > 10)   throw "is too high";
    if(x < 5)  throw "is too low";
  }
  catch(err) {
    message.innerHTML = "Input " + err;
  }
  finally {
    document.getElementById("demo").value = "";
  }
}
</script>

</body>

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: finally javascript

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Contributed on Jan 24 2023

Umesh Jadhav

0 Answers Avg Quality 2/10

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try catch finally

Comment

try {
  tryCode - Code block to run
}
catch(err) {
  catchCode - Code block to handle errors
}
finally {
  finallyCode - Code block to be executed regardless of the try result
}

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: finally

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Contributed on Jan 12 2023

Quaint Quelea

0 Answers Avg Quality 2/10

try...catch...finally

Comment

An error caught
Error message: Error: The number is low

Popularity 9/10 Helpfulness 1/10 Language whatever

Source: www.programiz.com

Tags: whatever whateve

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Contributed on Jul 19 2022

Misty Macaque

0 Answers Avg Quality 2/10

try, catch, throw

Comment

<body>

<h2>JavaScript try catch</h2>

<p>Please input a number between 5 and 10:</p>

<input id="demo" type="text">
<button type="button" onclick="myFunction()">Test Input</button>
<p id="p01"></p>

<script>
function myFunction() {
  const message = document.getElementById("p01");
  message.innerHTML = "";
  let x = document.getElementById("demo").value;
  try { 
    if(x.trim() == "")  throw "empty";
    if(isNaN(x)) throw "not a number";
    x = Number(x);
    if(x < 5)  throw "too low";
    if(x > 10)   throw "too high";
  }
  catch(err) {
    message.innerHTML = "Input is " + err;
  }
}

</script>
</body>

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Jan 24 2023

Umesh Jadhav

0 Answers Avg Quality 2/10

try, catch, throw, finally

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