在本例中,我们将展示如何使用 constructor 属性:
</>code
- <script type="text/javascript">
- var test=new Boolean();
- if (
test.constructor==Array
)- {
- document.write("This is an Array");
- }
- if (
test.constructor==Boolean
)- {
- document.write("This is a Boolean");
- }
- if (
test.constructor==Date
)- {
- document.write("This is a Date");
- }
- if (
test.constructor==String
)- {
- document.write("This is a String");
- }
- </script>
输出:
</>code
- This is a Boolean
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