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pythonarraysjsonkeymodulo

how to get modulus difference of values of two json objects in python

I have two JSON arrays , I need to get the modulus difference of the JSON object keys. My array list can have 1000s of elements. How to calculate it efficiently? Is there a way to do it parallelly without using loop?

For example

js1 = [{'myVal':100},{'myVal':200}]
js2 = [{'myVal':500},{'myVal':800}]

Result should be :

[{'myVal':400},{'myVal':600}]
Solution

  • There is 2 way to acheive it :

    • Using map
    js1 = [{'myVal':100},{'myVal':200}]
js2 = [{'myVal':500},{'myVal':800}]  
result = list(map(lambda x, y: {'myVal': y['myVal'] - x['myVal']}, js1, js2))
print(result)
    • Using list comprehension
    js1 = [{'myVal':100},{'myVal':200}]
js2 = [{'myVal':500},{'myVal':800}]
result = [{'myVal': y['myVal'] - x['myVal']} for x,y in zip(js1,js2)]
print(result)

    They will both output

    [{'myVal': 400}, {'myVal': 600}]