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Taylor Council
4,101 PointsIs indexOf a greedy solution for finding an array index?
I am wondering if there is a way to get all the indices in an array. For example when I add an additional apples item in this arr:
var inStock = [ 'apples', 'eggs', 'milk', 'apples']; var search;
console.log(inStock.indexOf('apples'));
The result only shows the first instance of the apples [0].
1 Answer
![Steven Parker](https://uploads.teamtreehouse.com/production/profile-photos/969492/micro_tool_chess_set_2.jpg)
Steven Parker
230,688 PointsI think you might best achieve what you describe using "reduce" (one of devine's suggestions):
console.log(inStock.reduce((a,c,i) => c=="apples" ? [...a, i] : a, []));
devina christabela
12,526 Pointsdevina christabela
12,526 PointsindexOf
only return the first occurrence from an array.. As far as I know, you need to loop the array and check one by one to find all index array which have same value, you can try with:for
loop and if with array orreduce
with initial value of[]
or