js determines the data type, such as determining whether it is an array, whether it is a string, etc. _javascript skills

1 Determine whether it is an array type
2 Determine whether it is a string type
3 Determine whether it is a numeric type
4 Determine whether it is a date type
5 Determine whether it is a function
6 Determine whether it is an object

1 Determine whether it is an array type

Copy code The code is as follows:

2 Determine whether it is a string type

Copy code The code is as follows:

3 Determine whether it is a numeric type

Copy code The code is as follows:

4 Determine whether it is a date type

Copy the code The code is as follows:

5 Determine whether it is a function

Copy code The code is as follows:

6 Determine whether it is an object

Copy code The code is as follows:

< ;script type="text/javascript">
//document.write(isObject(new Object()),'
');
document.write(isObject(10),'
');
function isObject(obj){
return (typeof obj=='object')&&obj.constructor==Object;
}
//]]>