The code is very simple and I would be expecting true however it returns false
var markets = ["AB", "CD"];
console.log("AB" in markets);
The code is very simple and I would be expecting true however it returns
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The code is very simple and I would be expecting true however it returns false
var markets = ["AB", "CD"];
console.log("AB" in markets);
I think you’re meaning
if (markets.indexOf('AB') !== -1).inessentially checks if the test is a property of the object, not if an element is contained within the array.For more information, look at
Array.indexOfvs. thein operator.