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JavaScript RegExp \xdd Character

Definition and Usage

The \xdd character is used to find the Latin character specified by a hexadecimal number dd.

If no match is found, it returns null.

new RegExp("\xdd")

or simply:

/\xdd/

Do a global search for the hexadecimal number 57 (W) in a string:

var str="Visit W3Schools. Hello World!";
var patt1=/\x57/g;

The marked text below shows where the expression gets a match:

Visit W3Schools. Hello World!