JSF EL:instanceof保留但尚未实现? [英] JSF EL: instanceof reserved but not yet implemented?

问题描述

我在JSF EL中找到了instanceof运算符，但使用时会引发异常.它显然是保留的，但是没有实现?如果尚未提供比我当前正在使用的JSF 1.2更高的版本，它将何时(可能)提供?

I've found the instanceof operator in JSF EL, but it throws an exception when used. It's obviously reserved but not implemented? When will it (probably) be available, if not already in a newer version than JSF 1.2, which I'm currently using?

推荐答案

关键字instanceof确实在EL中已保留(请参见

The keyword instanceof is indeed reserved in the EL (see here), but it is still not used in the latest version of EL (2.2), used in JSF 2.x.

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