JavaScript-1.5 Reference

JS_HasArrayLength

Function

Summary

Determines if an object has an array length property.

Syntax

JSBool JS_HasArrayLength(JSContext *cx, JSObject *obj,
    jsuint *lengthp);

Description

JS_HasArrayLength determines if an object, obj, has a length property. If the property exists, JS_HasArrayLength returns the current value of the property in lengthp.

On success, JS_HasArrayLength returns JS_TRUE, and lengthp indicates the current value of the array property. On failure, JS_HasArrayLength returns JS_FALSE, and lengthp is undefined.

See Also

Groups	[ Function ]
Documents	[ LXR ID Search ]
Entries	[ JS_AliasElement \| JS_DefineElement \| JS_DeleteElement \| JS_GetArrayLength \| JS_GetElement \| JS_IsArrayObject \| JS_LookupElement \| JS_NewArrayObject \| JS_SetArrayLength \| JS_SetElement ]

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