I created a function with a regular expression and then iterated over the array by adding the previous total to the next index in the array.
My code isn\'t working. Is m
you have some errors :
change var patrn = \\D
with var patrn = "\\D"
use parseInt
: total += parseInt(tot);
function sumofArr(arr){ // here i create a function that has one argument called arr
var total = 0; // I initialize a variable and set it equal to 0
var str = "12sf0as9d" // this is the string where I want to add only integers
var patrn = "\\D"; // this is the regular expression that removes the letters
var tot = str.split(patrn) // here i add split the string and store it into an array with my pattern
arr.forEach(function(tot){ // I use a forEach loop to iterate over the array
total += parseInt(tot); // add the previous total to the new total
})
return total; // return the total once finished
}
alert(sumofArr(["1", "2", "3"]));
https://jsfiddle.net/efrow9zs/