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28 lines
857 B
Lua
28 lines
857 B
Lua
local Observable = require "rx.observable"
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local util = require "rx.util"
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--- Returns a new Observable that produces the values of the original transformed by a function.
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-- @arg {function} callback - The function to transform values from the original Observable.
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-- @returns {Observable}
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function Observable:map(callback)
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return Observable.create(function(observer)
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callback = callback or util.identity
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local function onNext(...)
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return util.tryWithObserver(observer, function(...)
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return observer:onNext(callback(...))
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end, ...)
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end
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local function onError(e)
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return observer:onError(e)
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end
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local function onCompleted()
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return observer:onCompleted()
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end
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return self:subscribe(onNext, onError, onCompleted)
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end)
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end
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