[RESOLVED] Simple javascript fails 6: slice() method
Hey,
the script:
the output:HTML Code:<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>De waarde van een cookie uitlezen</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <script type="text/javascript"> /* <![CDATA[ */ function waarde_ophalen(waarde){ string=document.cookie; positie1=string.indexOf(waarde); positie2=string.indexOf("=",positie1)+1; positie3=string.indexOf(";",positie1); document.write("<br />"+positie2); document.write("<br />"+positie3); if(positie3==-1){positie3=string.length}; resultaat=string.slice(positie2,positie3); document.write("<br />"+waarde+": "+resultaat); } var datum=new Date(); datum.setTime(datum.getTime()+(24*60*60*1000)); document.cookie="naam=Alexander;expires="+datum.toGMTString(); document.cookie="woonplaats=Koksijde;expires="+datum.toGMTString(); document.cookie="taal=Nederlands;expires"+datum.toGMTString(); /* ]]> */ </script> </head> <body> <script type="text/javascript"> /* <![CDATA[ */ document.write("cookie:"+document.cookie); waarde_ophalen("naam"); waarde_ophalen("woonplaats"); waarde_ophalen("taal"); /* ]]> */ </script> </body> </html>
now what I don't understand is that the 5th, 27th and 42th characters are cut off but still display in the result. These are if I am counting correctly respectively the A from Alexander, the K from Koksijde and the N from Nederlands. (starting with n from naam as 0, etc...).Code:cookie:naam=Alexander; woonplaats=Koksijde; taal=Nederlands 5 14 naam: Alexander 27 35 woonplaats: Koksijde 42 -1 taal: Nederlands
The goal of this script is to read out results from a cookie and displaying them without the "=" and ";" characters.
Obviously it works, but I don't understand the positie2 determination and cut-off.
Reply With Quote
Bookmarks