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JavaScript

Posted by Chris Harders
Chris Harders
51 Points

How would I pass parameters from the URL to include in a button link with the same parameters?

I'd love some help!

I'm doing a project in which the values "Id" and "Email" are parameters in the URL that a contact lands on. (ex. Webpage.com/page1?Id=12345&Email=test@test.com)

There is a hyperlink to another page on the website that I'd like these values to be passed to and I'm not sure what code I need to put on to do it...

So far, I've done this...

<script> const params = new URLSearchParams(document.location.search); const Id1 = params.get("Id"); const Email1 = params.get("Email"); </script>

Then the link is...

href="https://website.com/Page2/?Id="+Id1+"&Email="+Email1

This is not working, so I'm sure I'm not writing out the hyperlink properly and possibly more... I'm not sure which training to be reviewing for this... I'm in Front End developer with Javascript, but haven't come across this yet...

Any feedback on how to have this pass successfully would be super appreciated!!

2 Answers

Dane Parchment
MOD
Dane Parchment
Treehouse Moderator 11,077 Points
Dane Parchment
Dane Parchment
Treehouse Moderator 11,077 Points

I believe it's not working because you structured the new URL incorrectly. The first parameter of a query string shouldn't be after a forward slash. Instead a question mark should follow the last link in the url and then you pass in the parameters.

So href="https://website.com/Page2/?Id="+Id1+"&Email="+Email1

should be: href="https://website.com/Page2?Id="+Id1+"&Email="+Email1

I believe. This may not work. But pretty sure that's why the url is failing for you.

Chris Harders
Chris Harders
51 Points
Chris Harders
Chris Harders
51 Points

I got a partial solution from StackOverflow...

Unfortunately, the method you recommended didn't change anything... Here's what I did...

<script>
const params = new URLSearchParams(document.location.search);
const Id1 = params.get("Id");
const Email1 = params.get("Email");
const page2 =()=>window.location.assign(`https://example.com/page2/?Id=${Id1}&Email=${Email1}`);
</script>

Then

<a href="#" onclick="page2()"> Click here </a>

It now works for clicks, but not right-clicks to open in a new tab/window...

I'd love feedback on that if people know what to do there.