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ES6 - charCodeAt()
This method returns a number indicating the Unicode value of the character at the given index. Unicode code points range from 0 to 1,114,111. The first 128 Unicode code points are a direct match of the ASCII character encoding. charCodeAt()always returns a value that is less than 65,536.
Syntax
string.charCodeAt(index);
Argument Details
- index − An integer between 0 and 1 less than the length of the string; if unspecified, defaults to 0.
Return Value
Returns a number indicating the Unicode value of the character at the given index. It returns NaN if the given index is not between 0 and 1 less than the length of the string.
Example
var str = new String("This is string"); console.log("str.charAt(0) is:" + str.charCodeAt(0)); console.log("str.charAt(1) is:" + str.charCodeAt(1)); console.log("str.charAt(2) is:" + str.charCodeAt(2)); console.log("str.charAt(3) is:" + str.charCodeAt(3)); console.log("str.charAt(4) is:" + str.charCodeAt(4)); console.log("str.charAt(5) is:" + str.charCodeAt(5));
Output
str.charAt(0) is:84 str.charAt(1) is:104 str.charAt(2) is:105 str.charAt(3) is:115 str.charAt(4) is:32 str.charAt(5) is:105
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