JavaScript String fromCharCode() Method

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The JavaScript String fromCharCode() method is a static method that converts a Unicode value (or a sequence of Unicode values) to the character(s) and returns a new string.

As discussed, that the fromCharCode() method is a static method of the String object, so it should always be used as String.fromCharCode(), rather than invoking it on a variable like x.fromCharCode(), where 'x' is a variable.

Syntax

Following is the syntax of JavaScript String fromCharCode() method −

String.fromCharCode(num1, num2, /*..., */ numN)

Parameters

This method accepts one or more parameters of the same type, which are Unicode values. The same is described below −

• num1, num2,.....numN − A one or more Unicode values that needs to be converted.

Return value

This method returns a string created from specified unicode values.

Example 1

In the following program, we are using the JavaScript String fromCharCode() method to retrieve a character value of the specified Unicode value 100.

Output

The above program returns 'd'.

Unicode value: 100
The unicode value 100 represents to character: d

Example 2

As the String fromCharCode() method accepts one or more parameters of the same type, you can pass multiple Unicode values to it, and it will return a new string from the specified sequence of the Unicode values.

Output

After executing the above program, it will return a new string "".

Unicode values are: 190, 43, 190
New string: ¾+¾

Example 3

As discussed, this is a static method, so always use it, String.fromCharCode(). But let's see what happens if we invoke this method on a variable like var.fromCharCode() rather than invoking it on a String object.

Output

The above program returns a 'TypeError' exception.

Unicode value: 65
TypeError: unicode_value.fromCharCode is not a function