My JSON array looks something like this:
[
{ value: 1, hidden: false },
{ value: 2, hidden: false },
{ value: 3, hidden: false }
]
I am trying to determine if the integer 2 is present in this array. What would be the most efficient method to accomplish this?
If your system is able to handle it, and if you want to explore additional attributes of the item, I would recommend utilizing Array.prototype.find:
var selection = array.find(item => item.value === 2)
if (selection.hidden) {
...
}
Utilize the Array.prototype.map method to create an array of integers, followed by using Array.prototype.includes method to locate a specific integer:
var isThreeInArray = [{value: 1, hidden: false},
{value: 2, hidden: false},
{value: 3, hidden: false}].map(function(entry) {return entry.value;}).includes(3);
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