JS Common topics

1, using the regular expression to implement the string end-to-end space deletion function.

<script>

var string= "abcdef";

Str=str.replace (^s*|s*$, ");

Alert ("str");

</script>

2, write a hack style implementation in IE6, IE7, Firefox, respectively, using a different color.

Background:blue;

*background:red!important;

_background:yellow;

3. List 4 HTTP status codes and explain the meanings.

200:ok;

400:bad request;

403:forbidden;

404:not found;

4. List of 3 Content-type

Text/html

Text/xml

Image/fax

Image/gif

JS Common topics