Check if a number is in ranges values contained in an array of objects-CodePudding

i have an array with couple of values like :

let myvar = 17
let myarray = [
    { start: 1, end: 10 },
    { start: 15, end: 22 },
    { start: 44, end: 47 }
]

I am looking for how to check if a variable is between the start and end of one of the objects in the array.

if myvar = 17, myfunction return true, because 17 is between 15 and 22 (the second object { start 15, end: 22 }), but if myvar = 12, myfunction return false.

CodePudding user response：

You can do it with some()

let data =
[
    { start: 1, end: 10 },
    { start: 15, end: 22 },
    { start: 44, end: 47 }
]

let num = 17

let result = data.some(d => d.start <=num && d.end >= num  )
console.log(result)

Update: If you want to do it via function,then you can do it as below:

let myArray =
[
    { start: 1, end: 10 },
    { start: 15, end: 22 },
    { start: 44, end: 47 }
]

let myVar = 12

const myFunc = (num,data) => data.some(d => d.start <=num && d.end >= num)

console.log(myFunc(myVar,myArray))

CodePudding user response：

lucumt answer is not wrong but it didn't tell me which child of data is true. it just told me that it exists in there. so for that reason, I would use for each.

let data =
[
    { start: 1, end: 10 },
    { start: 15, end: 22 },
    { start: 44, end: 47 }
]

let num = 17


data.forEach(dc => {
    // dc = data child
        if (dc.start <= num && dc.end >= num) {

            console.log(dc);
            console.log(dc.start);
            console.log(dc.end);
        }
});