JAVASCRIPT

string array to number array javascript

const stringArr = ["5", "4", "6", "2"];

const numArr = stringArr.map((item) => parseInt(item, 10));

js convert string array to number array

const atrArr = ['7', '2', '5']
let numbersArr = strArr.map(c => +c); //[7, 2, 5]

js convert number array to string array

/* You can use map and pass the String constructor as a function, 
	which will turn each number into a string: */
sphValues.map(String) //=> ['1','2','3','4','5']