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applyToEither (Future method)
Last update:
May 18, 2026
When either future completes successfully first, transforms the winning value on the completing thread.
Description
Synchronous counterpart to applyToEitherAsync.
Returns
A new Future.
Category
Asynchronous programming
Function syntax
future.applyToEither(other, function)Parameters
| Parameter | Description |
|---|---|
| other | Required. The other Future to race. |
| function | Required. A function that takes the first completed value and returns a transformed value. |
See also
Example
From product tests.
<cfscript>
f1 = runAsync(function() { return "fast"; });
f2 = runAsync(function() { sleep(1000); return "slow";});
either = f1.applyToEither(f2, function(x) { return x & "_processed";});
writeOutput(either.get()); // fast_processed
</cfscript>
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