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The charCodeAt() method returns the Unicode of the character at a specified index (position) in a string. The index of the first character is 0, the second is 1, .... The index of the last character is string length - 1 (See Examples below).
25 lip 2024 · The charCodeAt () method of String values returns an integer between 0 and 65535 representing the UTF-16 code unit at the given index. charCodeAt () always indexes the string as a sequence of UTF-16 code units, so it may return lone surrogates.
1 maj 2012 · The general format for a Unicode character inside a string is \000000 to \FFFFFF – a backslash followed by six hexadecimal digits. You can leave out leading 0 digits when the Unicode character is the last character in the string or when you add a space after the Unicode character. See the spec below for full details.
16 lip 2024 · The JavaScript str.charCodeAt () method returns a Unicode character set code unit of the character present at the index in the string specified as the argument. The index number ranges from 0 to n-1, where n is the string’s length.
The charCodeAt () method returns an integer between 0 and 65535 representing the UTF-16 code unit at the given index. The UTF-16 code unit matches the Unicode code point for code points that can be represented in a single UTF-16 code unit.
27 cze 2017 · The charCodeAt () method returns an integer between 0 and 65535 representing the UTF-16 code unit at the given index (the UTF-16 code unit matches the Unicode code point for code points representable in a single UTF-16 code unit, but might also be the first code unit of a surrogate pair for code points not representable in a single UTF-16 code ...
charCodeAt() returns NaN if the given index is less than 0 or is equal to or greater than the length of the string. Backward compatibilty: In historic versions (like JavaScript 1.2) the charCodeAt() method returns a number indicating the ISO-Latin-1 codeset value of the character at the given index.
