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thenRun
Last update:
May 18, 2026
After this Future completes normally, runs a parameterless action on the completing thread.
Description
thenRun is an instance method on a CFML Future. When the prior stage completes successfully, your action runs on the completing thread. The action takes no arguments and is used for side effects such as logging or flags. The method returns a new Future for chaining.
This is the synchronous counterpart to thenRunAsync.
Returns
A new Future.
Category
Asynchronous programming
Function syntax
future.thenRun(action)Parameters
| Parameter | Description |
|---|---|
| action | Required. A function with no parameters that performs work (void semantics). |
Example
Set a variable after the first stage completes.
<cfscript>
runAsync(function() { return 1; })
.thenRun(function() { variables.flag = true; })
.get();
writeOutput(variables.flag); // true
</cfscript>
See also
thenAccept
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