javascript variable and scriptlet value is not matching

Question

I am trying to match javascript variable value with value taken from scriptlet in jsp but even value are same I am not getting result true.

var a = 1;
console.log(a == <%=Constants.SOME_CONSTANT_VALUE%>);

Here value of Constants.SOME_CONSTANT_VALUE is "1" [String type] but I am getting console output as false.

What does this line look like when you View Source in the browser? — user253751, Nov 30 '15 at 09:05
@immibis I assumed it was Java. I also assume people who start working with servlets to understand the difference between == and equals. — Stultuske, Nov 30 '15 at 09:06
@NaveenRamawat : please learn the basics. That is not how you compare the value of objects correctly. — Stultuske, Nov 30 '15 at 09:07
@Stultuske thanks for the suggestion. Do you have a better solution to match javascript value to a constants define in java class. That will be more helpful than your suggestion. — Naveen Ramawat, Nov 30 '15 at 09:16
@Stultuske about which equals method you was talking about in javascript ? — Naveen Ramawat, Nov 30 '15 at 09:27
That's why I asked which language it was. the only response I got was "it's Java" . — Stultuske, Nov 30 '15 at 09:32
I didn't said it is java only .. please see the tag attached with question. — Naveen Ramawat, Nov 30 '15 at 09:34
What does this line look like when you View Source in the browser? — user253751, Nov 30 '15 at 19:05
@immibis .. Issue resolved and I already accepted the answer given by someone. — Naveen Ramawat, Dec 01 '15 at 04:43

mmk · Accepted Answer · 2016-06-13T09:01:29.627

1

try console.log(a == "<%=Constants.SOME_CONSTANT_VALUE%>");

edited Jun 13 '16 at 09:01

answered Nov 30 '15 at 09:30

mmk

Please try assigning scriptlet value to javascript var and then try to compare both javascript vars. Before comparing, plz check both javascript vars should output same value. – mmk Nov 30 '15 at 10:10
Hi There was fault in my code. Now it is working :) .. accepting the answer .. thanks .. – Naveen Ramawat Nov 30 '15 at 10:22

score 0 · Answer 2 · answered Nov 30 '15 at 09:07

0

Use parseInt and compare like below:

console.log(a == parseInt(<%=Constants.SOME_CONSTANT_VALUE%>));

answered Nov 30 '15 at 09:07

Miguel

1

thanks for answer but javascript does not have strict type check so 1 == "1" are same as 1 == 1 so it is not helping. :( – Naveen Ramawat Nov 30 '15 at 09:28

2 Answers2