objective c - Array from random objects of array -

objective c - Array from random objects of array -

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picking random object in nsarray 7 answers

i have array 20 elements.

myarray = @[ obj1, obj2, obj3, obj4, obj5, obj6, obj7, obj8, obj9, obj10, obj11, obj12, obj13, obj14, obj15, obj16, obj17, obj18, obj19, obj20];

i need randomly 10 of these elements , set them in array. how archieve this?

basically, utilize arc4random generate random number range of array.count, in loop iterates 10 times. within loop, fetch item @ indexrandomnumber, remove array , insert new array.

basic stuff. alternatively, sort or shuffle array (vcsjones) , grab first 10 items.

objective-c arrays sorting random