wanna fetch random number?

Question

I have a list of integers from 1 to 100 and i want 30 random numbers from that list how can we do this?

Mike Schmitt · Answer

step 1: generate list of possible returns (this can be an enumerated list or any other list, for the sake of flexibility) 
 step 2: create a "wrapper object" list where each list is assigned a random sort value 
 step 3: sort by the sort value, essentially randomizing the list 
 step 4: grab the first N results from the randomized list and return [note: paging lets us do this more easily] 
 a!localVariables(
 local!myValues: enumerate(100)+1, /* can be any list */
 local!numberToReturn: 30, /* can be whatever you want */
 
 local!sortableObjectList: a!forEach(
 local!myValues,
 a!map(
 originalIndex: fv!index,
 sortValue: rand()*10, /* resolves as decimal between 0 and 10, for readability */
 value: fv!item
 )
 ),
 
 local!sortedPage: todatasubset(
 arrayToPage: local!sortableObjectList,
 pagingConfiguration: a!pagingInfo(
 startIndex: 1,
 batchSize: local!numberToReturn,
 sort: a!sortInfo(
 field: "sortValue",
 ascending: true()
 )
 )
 ),
 
 local!sortedPage.data.value
)

wanna fetch random number?

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