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RangeError: argument is not a valid code point - JavaScript | MDN
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RangeError: argument is not a valid code point

Message

RangeError: Invalid code point {0} (Edge)
RangeError: {0} is not a valid code point (Firefox)
RangeError: Invalid code point {0} (Chrome)

Dans cet article

Type d'erreur

RangeError

Quel est le problme ?

La mthode String.fromCodePoint() a t utilise mais elle n'accepte que les points de code valides (code points) et la valeur fournie en argument n'est pas un point de code valide (ex. NaN, -1).

Un point de code est une valeur de code Unicode et s'inscrit dans un intervalle allant de 0 0x10FFFF.

Les valeurs NaN, les entiers ngatifs (-1), les flottants (3.14) ou les valeur suprieures 0x10FFFF (1114111) ne peuvent pas tre utilises avec cette mthode.

Examples

Exemples invalides

js
String.fromCodePoint("_"); // RangeError
String.fromCodePoint(Infinity); // RangeError
String.fromCodePoint(-1); // RangeError
String.fromCodePoint(3.14); // RangeError
String.fromCodePoint(3e-2); // RangeError
String.fromCodePoint(NaN); // RangeError

Exemples valides

js
String.fromCodePoint(42); // "*"
String.fromCodePoint(65, 90); // "AZ"
String.fromCodePoint(0x404); // "\u0404"
String.fromCodePoint(0x2f804); // "\uD87E\uDC04"
String.fromCodePoint(194564); // "\uD87E\uDC04"
String.fromCodePoint(0x1d306, 0x61, 0x1d307); // "\uD834\uDF06a\uD834\uDF07"

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  1. JavaScript
  2. Tutoriels et guides
  3. Guide JavaScript
    1. Introduction
    2. Types et grammaire
    3. Contrle du flux et gestion des erreurs
    4. Boucles et itration
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  5. Avanc
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  13. Erreurs
    1. AggregateError: No Promise in Promise.any was resolved
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    5. RangeError: BigInt division by zero
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    14. RangeError: x can't be converted to BigInt because it isn't an integer
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    32. SyntaxError: continue must be inside loop
    33. SyntaxError: duplicate capture group name in regular expression
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    35. SyntaxError: for-in loop head declarations may not have initializers
    36. SyntaxError: function statement requires a name
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    39. SyntaxError: getter functions must have no arguments
    40. SyntaxError: identifier starts immediately after numeric literal
    41. SyntaxError: illegal character
    42. SyntaxError: import declarations may only appear at top level of a module
    43. SyntaxError: incomplete quantifier in regular expression
    44. ReferenceError: invalid assignment left-hand side
    45. SyntaxError: invalid BigInt syntax
    46. SyntaxError: invalid capture group name in regular expression
    47. SyntaxError: invalid character in class in regular expression
    48. SyntaxError: invalid class set operation in regular expression
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    52. SyntaxError: invalid property name in regular expression
    53. SyntaxError: invalid range in character class
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    56. SyntaxError: invalid unicode escape in regular expression
    57. SyntaxError: JSON.parse: bad parsing
    58. SyntaxError: label not found
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    60. SyntaxError: missing ) after argument list
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    63. SyntaxError: missing } after function body
    64. SyntaxError: missing } after property list
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    66. SyntaxError: missing formal parameter
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    68. SyntaxError: missing variable name
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    70. SyntaxError: new keyword cannot be used with an optional chain
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    75. SyntaxError: private fields can't be deleted
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    78. SyntaxError: redeclaration of formal parameter "x"
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    80. SyntaxError: rest parameter may not have a default
    81. SyntaxError: return not in function
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    83. SyntaxError: unterminated string literal
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    85. SyntaxError: tagged template cannot be used with optional chain
    86. SyntaxError: Unexpected '#' used outside of class body
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    90. SyntaxError: use of super property/member accesses only valid within methods or eval code within methods
    91. SyntaxError: Using //@ to indicate sourceURL pragmas is deprecated. Use //# instead
    92. ReferenceError: deprecated caller or arguments usage
    93. TypeError: 'x' is not iterable
    94. TypeError: "x" is (not) "y"
    95. TypeError: "x" is not a constructor
    96. TypeError: "x" is not a function
    97. TypeError: "x" is not a non-null object
    98. TypeError: "x" is read-only
    99. TypeError: already executing generator
    100. TypeError: BigInt value can't be serialized in JSON
    101. TypeError: calling a builtin X constructor without new is forbidden
    102. TypeError: can't access/set private field or method: object is not the right class
    103. TypeError: can't assign to property "x" on "y": not an object
    104. TypeError: can't convert BigInt to number
    105. TypeError: can't convert x to BigInt
    106. TypeError: can't define property "x": "obj" is not extensible
    107. TypeError: can't delete non-configurable array element
    108. TypeError: can't redefine non-configurable property "x"
    109. TypeError: can't set prototype of this object
    110. TypeError: can't set prototype: it would cause a prototype chain cycle
    111. TypeError: invalid 'in' operand "x"
    112. TypeError: class constructors must be invoked with 'new'
    113. TypeError: cyclic object value
    114. TypeError: derived class constructor returned invalid value x
    115. TypeError: getting private setter-only property
    116. TypeError: Initializing an object twice is an error with private fields/methods
    117. TypeError: invalid 'instanceof' operand 'x'
    118. TypeError: invalid Array.prototype.sort argument
    119. TypeError: invalid assignment to const "x"
    120. TypeError: Iterator/AsyncIterator constructor can't be used directly
    121. TypeError: matchAll/replaceAll must be called with a global RegExp
    122. TypeError: More arguments needed
    123. TypeError: "x" has no properties
    124. TypeError: property "x" is non-configurable and can't be deleted
    125. TypeError: Reduce of empty array with no initial value
    126. TypeError: setting a property that has only a getter
    127. TypeError: WeakSet key/WeakMap value 'x' must be an object or an unregistered symbol
    128. TypeError: X.prototype.y called on incompatible type
    129. URIError: malformed URI sequence
    130. Warning: -file- is being assigned a //# sourceMappingURL, but already has one
    131. Warning: unreachable code after return statement
  14. Divers
    1. Aperu des technologies JavaScript
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    3. Grammaire lexicale
    4. Protocoles d'itration
    5. Mode strict
    6. Gabarits de chanes de caractres
    7. Virgules finales
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