Référence des erreurs JavaScript

Errare ECMAScript est… Vous trouverez ci-après une liste d'erreurs causées par le moteur JavaScript. Ces erreurs peuvent aider à déboguer certains problèmes mais leur signification n'est pas toujours claire. Chacune de ces pages fournit donc des explications et informations supplémentaires à propos de ces erreurs.

D'un point de vue technique, chaque erreur est un objet Error et possède une propriété name (son nom) et une propriété message.

Liste d'erreurs

• Error: Permission denied to access property "x"
• InternalError: too much recursion
• RangeError: BigInt division by zero
• RangeError: BigInt negative exponent
• RangeError: argument is not a valid code point
• RangeError: invalid array length
• RangeError: invalid date
• RangeError: precision is out of range
• RangeError: radix must be an integer
• RangeError: repeat count must be less than infinity
• RangeError: repeat count must be non-negative
• RangeError: x can't be converted to BigInt because it isn't an integer
• ReferenceError: "x" is not defined
• ReferenceError: assignment to undeclared variable "x"
• ReferenceError: can't access lexical declaration 'X' before initialization
• ReferenceError: deprecated caller or arguments usage
• ReferenceError: invalid assignment left-hand side
• SyntaxError: "0"-prefixed octal literals and octal escape seq. are deprecated
• SyntaxError: "use strict" not allowed in function with "x" parameter
• SyntaxError: "x" is a reserved identifier
• SyntaxError: JSON.parse: bad parsing
• SyntaxError: Unexpected '#' used outside of class body
• SyntaxError: Unexpected token
• SyntaxError: Using //@ to indicate sourceURL pragmas is deprecated. Use //# instead
• SyntaxError: a declaration in the head of a for-of loop can't have an initializer
• SyntaxError: applying the 'delete' operator to an unqualified name is deprecated
• SyntaxError: cannot use `??` unparenthesized within `||` and `&&` expressions
• SyntaxError: for-in loop head declarations may not have initializers
• SyntaxError: function statement requires a name
• SyntaxError: identifier starts immediately after numeric literal
• SyntaxError: illegal character
• SyntaxError: invalid BigInt syntax
• SyntaxError: invalid regular expression flag "x"
• SyntaxError: missing ) after argument list
• SyntaxError: missing ) after condition
• SyntaxError: missing : after property id
• SyntaxError: missing = in const declaration
• SyntaxError: missing ] after element list
• SyntaxError: missing formal parameter
• SyntaxError: missing name after . operator
• SyntaxError: missing variable name
• SyntaxError: missing } after function body
• SyntaxError: missing } after property list
• SyntaxError: redeclaration of formal parameter "x"
• SyntaxError: return not in function
• SyntaxError: unparenthesized unary expression can't appear on the left-hand side of '**'
• SyntaxError: unterminated string literal
• TypeError: "x" has no properties
• TypeError: "x" is (not) "y"
• TypeError: "x" is not a constructor
• TypeError: "x" is not a function
• TypeError: "x" is not a non-null object
• TypeError: "x" is read-only
• TypeError: 'x' is not iterable
• TypeError: More arguments needed
• TypeError: Reduce of empty array with no initial value
• TypeError: X.prototype.y called on incompatible type
• TypeError: can't assign to property "x" on "y": not an object
• TypeError: can't convert BigInt to number
• TypeError: can't convert x to BigInt
• TypeError: can't define property "x": "obj" is not extensible
• TypeError: can't delete non-configurable array element
• TypeError: can't redefine non-configurable property "x"
• TypeError: cyclic object value
• TypeError: invalid 'in' operand "x"
• TypeError: invalid 'instanceof' operand 'x'
• TypeError: invalid Array.prototype.sort argument
• TypeError: invalid assignment to const "x"
• TypeError: property "x" is non-configurable and can't be deleted
• TypeError: setting a property that has only a getter
• URIError: malformed URI sequence
• Warning: -file- is being assigned a //# sourceMappingURL, but already has one
• Warning: unreachable code after return statement

Voir aussi

• Qu'est-ce qui a cloché ? Diagnostiquer un problème JavaScript : un tutoriel introductif pour réparer les erreurs JavaScript