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URL: http://developer.mozilla.org/es/docs/Web/JavaScript/Reference/Errors/Not_a_valid_code_point

/runtime.9f7d5a462e51f2b8.js" type="module">

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RangeError: argument is not a valid code point

Message

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

Tipo de error

RangeError

¿Qué estuvo mal?

El metodo String.fromCodePoint() acepta solamente code point validos.

Un code point es un valor en el conjunto de caracteres Unicode; esto es, un rango de enteros que va desde 0 a 0x10FFFF.

Usando valores NaN, enteros negativos (-1), no enteros (3.14), o valores mayores a 0x10FFFF (1114111) no trabajarian con este metodo.

Ejemplos

Casos invalidos

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

Casos validos

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"

Observe tambien

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