Add elements in Array

Question

Hi, 
 I have a local variable with 2 items . 
 I need to add each element in the array with the corresponding index and display the total . Eg {1,2,3} +{1,2,3} = {2,4,6} 
 But in my case I can't apply the addition directly . It should be in a loop. I even tried using merge function but it is not working.. . How to achieve this. The below output is present inside a local variable (local!final).I need to add {0+2,36+82,2+8} and form a single array.

Stefan Helzle · Accepted Answer

a!localVariables(
 local!values: a!forEach(
 items: enumerate(2),
 expression: if(fv!index = 1, {0,36,2}, {2,82,8})
 ),
 a!forEach(
 items: enumerate(count(a!flatten(local!values[1]))),
 expression: a!localVariables(
 local!outerIndex: fv!index,
 sum(
 a!forEach(
 items: enumerate(count(local!values)),
 expression: local!values[fv!index][local!outerIndex]
 )
 )
 )
 )
)

EREN_YEAGER · Answer

As I understand it, there's no need to follow the definition of local!value . You can replace local!value with your own variable&mdash;the one on which you want to perform the calculation. You just need to copy this part accordingly. and i t should work fine. a!forEach(
 items: enumerate(count(a!flatten(local!value[1]))),
 expression: a!localVariables(
 local!outerIndex: fv!index,
 sum(
 a!forEach(
 items: enumerate(count(local!value)),
 expression: local!value[fv!index][local!outerIndex]
 )
 )
 )
 )

kishorej1999 · Answer

Hii srinivaasant574373 , 
 Here is the solution which can cover you use case, 
 a!localVariables(
 local!a: { 0, 36, 2 },
 local!b: { 2, 82, 2 },
 local!arrayWithTheLessSize: if(
 length(local!a) <= length(local!b),
 local!a,
 local!b
 ),
 a!forEach(
 items: local!arrayWithTheLessSize,
 expression: fv!item + index(local!b, fv!index, null)
 )
) 
 Thanks

Harsha Sharma · Answer

You can try something like this! In your case the output is in local!a in the sample code below. you can ignore the other two variables local!x and local!y. Line 5 to 7 has actual solution. 
 a!localVariables(
local!x: { 0, 36, 2 },
local!y: { 2, 82, 8 },
local!a: a!foreach({ 1, 2 }, if(fv!item = 1, local!x, local!y)),
a!foreach(
local!a[1],
sum(fv!item, local!a[2][fv!index])
)
)

EREN_YEAGER · Answer

Hi You can index each items in a local variable and perform addition in a!foreach. For example if you have two items you can follow this code-> a!localVariables(
 /*ignore below code (replicating ur array)*/
 local!a: { 0, 2, },
 local!b: { 36, 82 },
 local!c: { 2, 8 },
 local!arr: merge(local!a, local!b, local!c),
 /*ignore above*/
 /*code for getting value in seprate varables*/
 local!arr1: index(local!arr, 1, ""),
 local!arr2: index(local!arr, 2, ""),
 /*addition*/
 local!arrayWithTheLessSize: if(
 length(local!arr1) <= length(local!arr2),
 local!arr1,
 local!arr2
 ),
 local!arrayWithTheMoreSize: if(
 length(local!arr1) > length(local!arr2),
 local!arr1,
 local!arr2
 ),
 a!forEach(
 items: local!arrayWithTheMoreSize,
 expression: fv!item + index(
 local!arrayWithTheLessSize,
 fv!index,
 0
 )
 )
) one question, Can there be more than two items in that array?

rohiths298655 · Answer

Hi srinivaasant574373 This is the simplified version you can give a try, 
 a!localVariables(
 local!array1: {1,2,3,4},
 local!array2: {1,2,3},
 local!array3: {1,2},
 a!forEach(
 merge(local!array1,local!array2,local!array3),
 sum(fv!item)
 )
)

Add elements in Array

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