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<!DOCTYPE html>
<html>
<body>
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<h2>JavaScript Numbers</h2>
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<p>If you add two numeric strings, the result will be a concatenated string:</p>
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<p id="demo"></p>
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<script>
var x = "10";
var y = "20";
var z = x + y;
document.getElementById("demo").innerHTML = z;
</script>
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</body>
​
<!-- Mirrored from www.w3schools.com/js/tryit.asp?filename=tryjs_numbers_add_strings1 by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:28:13 GMT -->
</html>
​
​
​
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