The toWellFormed() method of String values returns a string where all lone surrogates of this string are replaced with the Unicode replacement character U+FFFD.

The growable accessor property of SharedArrayBuffer instances returns whether this SharedArrayBuffer can be grow or not.

The SharedArrayBuffer[Symbol.species] static accessor property returns the constructor used to construct return values from SharedArrayBuffer methods.

The [Symbol.iterator]() method of arguments objects implements the iterable protocol and allows arguments objects to be consumed by most syntaxes expecting iterables, such as the spread syntax and for...of loops. It returns an array iterator object that yields the value of each index in the arguments object.

The values() method of Set instances returns a new set iterator object that contains the values for each element in this set in insertion order.

The valueOf() method of Symbol values returns this symbol value.

The Symbol.match static data property represents the well-known symbol Symbol.match. The String.prototype.match() method looks up this symbol on its first argument for the method used to match an input string against the current object. This symbol is also used to determine if an object should be treated as a regex.

The Float32Array() constructor creates Float32Array objects. The contents are initialized to 0 unless initialization data is explicitly provided.

# Contributors by commit history https://github.com/mdn/content/commits/main/files/en-us/web/javascript/reference/errors/illegal_character/index.md # Original Wiki contributors fscholz PatrickKettn...

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