JavaScript 에서의 문자열과 숫자 더하기

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<script type="text/javascript">
x=5+5;
document.write(x);
document.write("<br />");
x="5"+"5";
document.write(x);
document.write("<br />");
x=5+"5";
document.write(x);
document.write("<br />");
x="5"+5;
document.write(x);
document.write("<br />");
</script>
<p>The common rule is: If you add a number and a string,
the result will be a string.</p>
 
 
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