Operator Type:
Operator Scope of Action:
Operator Purpose:
Operator First Added:
Operator Altered:
Function [other Function type actions]
Item [operators of similar scope]
Stream parsing [other Stream parsing operators]
9.1.0
Stream.failed
.failed returns true if the current operation has failed, and false otherwise.
When processing a string, it may be that the string is not what was expected. Thus the .failed operator raises a flag to say this process did not work.