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    JSVAL IS NULL

    Determine if a given jsval is null.

    Syntax

    JSVAL_IS_NULL(v)
    

    Description

    JSVAL_IS_NULL(v) is true if v is JSVAL_NULL, which is the JavaScript null value.

    (Note: JSVAL_IS_OBJECT(JSVAL_NULL) is also true.)

    Example

    The following code snippet illustrates how a JavaScript variable, MyItem, is conditionally tested in an if statement to see if it contains a null value.

    if (JSVAL_IS_NULL(MyItem)) {
        ...
    }
    

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    Document Tags and Contributors

    Contributors to this page: Jorend
    Last updated by: Jorend,