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parseInt()
parses a string and returns a whole number
(int). Spaces are allowed. Only the first number is returned. Very similar to the Number()
function.
let output = "";
let output = "";
let a = "10";
let b = "10.33";
let c = "10 20 30";
let d = "10 years";
let e = "years 10";
output += `10: ${parseInt(a)}<br />`;
output += `10.33: ${parseInt(b)}<br />`;
output += `10 20 30: ${parseInt(c)}<br />`;
output += `"10 years": ${parseInt(d)}<br />`;
output += `"years 10": ${parseInt(e)}<br />`;
let demo1 = document.getElementById("demo1");
demo1.innerHTML = output;