How to change a variable based on the server URL in JavaScript

Question

I have a variable that gets the server url:

var server = parent.Xrm.Page.context.getClientUrl();

I want to be able to console log different things based on the server URL so created an if created an if condition:

if(server = "www.homemysiteserver.com"){
  console.log("home page");
} else if(server = "www.aboutmysiteserver.com"){
  console.log("about page");
} else if(server = "www.infomysiteserver.com"){
  console.log("about page");
}

However this doesn't work. I'm not sure what I'm doing wrong

is that valid one `parent.Xrm.Page.context.getClientUrl();` .Whats they are return ? .For condition use `===` instead of `=` — prasanth, Nov 14 '19 at 11:46
You might also need the protocol. Also I second the above, what's wrong with window.location.href — TommyBs, Nov 14 '19 at 11:48
@prasanth parent.Xrm.Page.context.getClientUrl(); is valid and produces the correct result. — T.Doe, Nov 14 '19 at 11:50
`=` is for [assignment](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Assignment_Operators), `==` or `===` is the [comparison operator](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators) — Liam, Nov 14 '19 at 11:53

Hugo Barona · Answer 1 · 2019-11-14T16:05:23.690

You should use strict equal to ensure that the server string is equal to a given value and of the same type. More info here.

So instead of doing

if(server = "www.homemysiteserver.com")

you should be doing this

if(server === "www.homemysiteserver.com")

Also in case you want to simply to obtain the host url you can use the following:

window.location.hostname and this will give you homemysiteserver.com or any other value according to the url.

The same applies to all the other validations you are doing.

score 1 · Answer 2 · edited Nov 14 '19 at 12:29

As both Hugo Barona and Liam have pointed out, the original issue was that you were trying to compare the server names using the assignment operator =, instead of the comparison operators == or ===. The difference between these is very well explained in the answers to this question. (as a rule of thumb, use === for strings)

In order to get the server URL (commonly referred to as hostname), you can use the global window property. This has a property window.location.hostname, which will return for instance stackoverflow.com.

var hostname= window.location.hostname;

if(hostname === "www.homemysiteserver.com"){
  console.log("home page");
} else if(hostname === "www.aboutmysiteserver.com"){
  console.log("about page");
} else if(hostname === "www.infomysiteserver.com"){
  console.log("about page");
}

Do note that the returned value may not include www. or http://, so your use of var server = parent.Xrm.Page.context.getClientUrl(); is likely more consistent for you situation.

Yep, bad assumption on my part – J Lewis Nov 14 '19 at 11:58 — J Lewis, Nov 14 '19 at 11:58

How to change a variable based on the server URL in JavaScript

2 Answers2