In answering Aaron's recent question , I'd like to do something like the following:
rule first_rule {
select when pageview "exampley.com/\?name=(.*)" setting (username)
pre {
isjoe = username eq "joe";
myaction = defaction() {
thisaction = isjoe => notify("Hello, World", "Hi there, Joe!") | noop();
thisaction();
};
}
{
notify("Will it work?", "Methinks you are #{username}");
myaction();
}
}
However, the defaction never seems to work. It doesn't like that I'm trying to assign an action to a variable and then return that variable.
What am I doing wrong?
You are really close.
You can't call an action till the end of the defaction. You need to create a defaction that delays execution till the right time.
Change:
thisaction = isjoe => notify("Hello, World", "Hi there, Joe!") | noop();
to
thisaction = isjoe => defaction(){notify("Hello, World", "Hi there, Joe!");} | noop;
Note the added defaction and I removed the parens from noop
.
This concept is is similar to javascript closures.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.