I am using react application in iteration I have a map method with some doubt, I have a select box with fill number based on iteration 0 to coming value base,my expected output is [{label:0,value:0},{label:1,value:1},{label:2,value:2}] but coming output is =[{label:1,value:1},{label:2,value:2}], I know how to do in for loop but, i want know map method beacuse i am react application,i tried fill , and join method it's not working please help uss
let value = 2
[...Array(parseInt(value)).keys()].map((x, index) => (
{
label: x + 1,
value: x + 1,
}
))
Array(2); will create an empty array with length is 2, so when you want your array is [0, 1, 2], the length should be Array(3);. So I update your code into Array(value + 1) and remove parseInt.
let value = 2
const result = [...Array(value + 1).keys()].map((x) => ({
label: x,
value: x,
}))
console.log(result);