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).

Mar 13, 2025 · 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. To get the full Unicode code point at the given index, use String.prototype.codePointAt().

Sep 18, 2008 · How can I convert a character to its ASCII code using JavaScript? For example: get 10 from "\n". Please note that the String.prototype.charCodeAt () method suggested in most answers will return the UTF-16 code unit (not even the full proper UTF-16 encoding due to historical reasons).

Jan 11, 2007 · An interactive javascript key code reference for javascript developers. Includes an interative text box where you can type a key and see it's code along with a complete lookup table.

Apr 3, 2025 · The String.fromCharCode() static method returns a string created from the specified sequence of UTF-16 code units. A number between 0 and 65535 (0xFFFF) representing a UTF-16 code unit. Numbers greater than 0xFFFF are truncated to …

Nov 29, 2023 · How can I convert a character to its respective keycode? You can use the charCodeAt function to achieve this. Working example: var character = document.getElementById("character").value.substring(0, 1); var code = document.getElementById("character").value.charCodeAt(0);

let text = "The character \\ is called backslash."; Six other escape sequences are valid in JavaScript: The 6 escape characters above were originally designed to control typewriters, teletypes, and fax machines. They do not make any sense in HTML. For readability, programmers often like to avoid long code lines.

Jun 21, 2021 · The only method to get real UNICODE code points (is it that charCode of yours?) from string is to use ES6 and its string enumeration feature: for (let ch of str) { ch here is real UNICODE code point }

Jul 16, 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. This method accepts a single parameter.

Feb 1, 2025 · The charCodeAt() method is a built-in string function in JavaScript that accesses the character at a specified index and returns its equivalent Unicode value (an integer). Unicode provides a unique number for every character across …