In this array ["mac","abcde","kalman","7.4099649898408115"]
how can I get mac value is abcde and kalman value is 7.4099649898408115
I mean how can I select abcde when I want to get mac value in this string
for example
console.log(mac) // and it returns abcde
How can I do this?
Thank you for your help
You could convert the array to an object and take the wanted string as accessor of the object.
var data = ["mac","abcde","kalman","7.4099649898408115"],
object = {};
for (let i = 0; i < data.length; i += 2) {
object[data[i]] = data[i + 1];
}
console.log(object.mac); // access with dot
console.log(object['mac']); // access with brackets and string
console.log(object.kalman);you can use modulo and find each even index then make the change to your object
const input = ["mac", "abcde", "kalman", "7.4099649898408115"]
const obj = {};
for (let i = 0; i < input.length; i++) {
if (i % 2 === 0) {
obj[input[i]] = input[i + 1]
}
}
console.log(obj)
console.log(obj.mac)Seems like your array is made out of pairs. Every even index is the key you are looking for and every odd index is the corresponding value. A better datastructure would be an object (used as an dictionary) or a map. If you want to stick with an array, you can use findIndex and then simply add one to it.
let data = ["mac","abcde","kalman","7.4099649898408115"];
let searchKey = "mac";
const index = data.findIndex(e => e === searchKey);
const result = data[index + 1];
console.log(result); // prints "abcde"
With reduce :
const array = ["mac","abcde","kalman","7.4099649898408115"];
const object = array.reduce((acc, cur, i, arr) =>
!(i%2) ? {...acc, [cur]: arr[i + 1]} : acc, {})
console.log(object)
console.log('max : ', object.mac)
console.log('kalman : ', object.kalman)
{ mac: "abcde", kalman: "7.4099649898408115" }