Entry: JS_LookupUCProperty (Function)
Summary: Determines if a specified, Unicode-encoded property exists.
Syntax:
JSBool JS_LookupUCProperty(JSContext *cx, JSObject *obj,
const jschar *name, size_t namelen, jsval *vp);
Argument Type Description
cx JSContext * Pointer to a JS context from which to derive runtime information.
obj JSObject * Object to search on for the property.
name const jschar * Name of the property to look up.
namelen size_t Length, in bytes, of name.
vp jsval * Pointer to a variable into which to store the last retrieved value of the property if it exists. If not, vp is set to JSVAL_VOID.
Description:
JS_LookupUCProperty examines a specified JS object, obj, for a Unicode-encoded property named name. namelen indicates the size, in bytes, of name. If the property exists, vp is set either to the last retrieved value of the property if it exists, or to JSVAL_VOID if it does not, and JS_LookupProperty returns JS_TRUE. On error, such as running out of memory during the search, JS_LookupProperty returns JS_FALSE, and vp is undefined.
See also:
[sh-index] Back to list of manuals
|
| |
