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API > @angular/core

resolveForwardRef

从 forwardRef 惰性检索引用值。

Lazily retrieves the reference value from a forwardRef.

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      resolveForwardRef<T>(type: T): T
参数
type T
返回值

T

参见

说明

给定非前向引用值时，充当标识函数。

Acts as the identity function when given a non-forward-ref value.

Further information available in the Usage Notes...

使用说明

例子

Example

      
      const ref = forwardRef(() => 'refValue');
expect(resolveForwardRef(ref as any)).toEqual('refValue');
expect(resolveForwardRef('regularValue')).toEqual('regularValue');