Created
January 9, 2020 02:22
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#As part of a data processing pipeline, complete the implementation of the pipeline method: | |
#The method should accept a variable number of functions, and it should return a new function that accepts one parameter arg. | |
#The returned function should call the first function in the pipeline with the parameter arg, and call the second function with the result of the first function. | |
#The returned function should continue calling each function in the pipeline in order, following the same pattern, and return the value from the last function. | |
#For example, pipeline(lambda x: x * 3, lambda x: x + 1, lambda x: x / 2) then calling the returned function with 3 should return 5.0. | |
#https://www.testdome.com/questions/python/pipeline/24245?visibility=1&skillId=9 | |
def pipeline(*funcs): | |
def helper(arg): | |
result = arg | |
for f in funcs: | |
result = f(result) | |
return result | |
return helper | |
fun = pipeline(lambda x: x * 3, lambda x: x + 1, lambda x: x / 2) | |
print(fun(3)) #should print 5.0 |
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