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Answers for "js errors"

Javascript
2

built in javascript errors

EvalError:
	Creates an instance representing an error that occurs regarding the global function eval().
RangeError:
	Creates an instance representing an error that occurs when a numeric variable or parameter is outside of its valid range.
ReferenceError:
	Creates an instance representing an error that occurs when de-referencing an invalid reference.
SyntaxError:
	Creates an instance representing a syntax error.
TypeError:
	Creates an instance representing an error that occurs when a variable or parameter is not of a valid type.
URIError:
	Creates an instance representing an error that occurs when encodeURI() or decodeURI() are passed invalid parameters.
AggregateError:
	Creates an instance representing several errors wrapped in a single error when multiple errors need to be reported by an operation, for example by Promise.any().
InternalError:
	Creates an instance representing an error that occurs when an internal error in the JavaScript engine is thrown. E.g. "too much recursion".
Posted by: Guest on July-16-2021
9

javascript throw new error

throw new Error("Error message here"); // Uncaught Error: Error message here
Posted by: Guest on June-06-2020
3

js errors

JS Error Name Values:
name
Sets or returns the error name
message
Sets or returns an error message in string from
EvalError
An error has occurred in the eval() function
RangeError
A number is “out of range”
ReferenceError
An illegal reference has occurred
SyntaxError
A syntax error has occurred
TypeError
A type error has occurred
URIError
An encodeURI() error has occurred
Posted by: Guest on January-04-2021
3

js errors

JS Errors
try
Lets you define a block of code to test for errors
catch
Set up a block of code to execute in case of an error
throw
Create custom error messages instead of the standard JavaScript errors
finally
Lets you execute code, after try and catch, regardless of the result
Posted by: Guest on January-04-2021
1

JavaScript Errors

<p id="demo"></p>

<script>
try {
  adddlert("Welcome guest!");
}
catch(err) {
  document.getElementById("demo").innerHTML = err.message;
}
</script>
Posted by: Guest on February-27-2021
0

javascript string error

Error.prototype.toString = function() {
  'use strict';

  var obj = Object(this);
  if (obj !== this) {
    throw new TypeError();
  }

  var name = this.name;
  name = (name === undefined) ? 'Error' : String(name);

  var msg = this.message;
  msg = (msg === undefined) ? '' : String(msg);

  if (name === '') {
    return msg;
  }
  if (msg === '') {
    return name;
  }

  return name + ': ' + msg;
};
Posted by: Guest on September-08-2020

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