RangeError

Summary

The RangeError object indicates an error when a value is not in the set or range of allowed values.

Syntax

new RangeError([message[, fileName[, lineNumber]]])

Parameters

message

Optional. Human-readable description of the error

fileName

Optional. The name of the file containing the code that caused the exception

lineNumber

Optional. The line number of the code that caused the exception

Description

A RangeError is thrown when trying to pass a number as an argument to a function that does not allow a range that includes that number. This can be encountered when attempting to create an array of an illegal length with the Array constructor, or when passing bad values to the numeric methods Number.toExponential(), Number.toFixed() or Number.toPrecision().

Properties

RangeError.prototype

Allows the addition of properties to an RangeError object.

Methods

The global RangeError contains no methods of its own, however, it does inherit some methods through the prototype chain.

RangeError instances

Properties

Methods

Examples

Example: Using RangeError

var check = function(num) {
  if (num < MIN || num > MAX) {
    throw new RangeError('Parameter must be between ' + MIN + ' and ' + MAX);
  }
};

try {
  check(500);
}
catch (e) {
  if (e instanceof RangeError) {
    // Handle range error
  }
}

Specifications

Browser compatibility

See also

• Error
• RangeError.prototype
• Array
• Number.toExponential()
• Number.toFixed()
• Number.toPrecision()