passing javascript variable to button

hi, i currently have the top code snippet and it works fine, however i would like it to call a function with the given value instead of opening it as a URL, i attempted to do this with the second code snippet - however i cannot get it to work...

all i want to do is pass the value of service["links"][0]["href"] to the function previewFunction() in that string...

it must be a super simple answer... but something i am just missing all morning... any advice much appreciated...

     linkString += '<li><a href="'+service["links"][0]["href"]+'">'+linkStringArray["type"]+'</a></li>'; //shows url successfully

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  linkString += '<li><button onclick="previewFunction("'+ service["links"][0]["href"] +'")">g</button></li>';

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Julian HansenCommented:
How does it not work?

One thing is you have double quotes in your string twice i.e.
linkString += '<li><button onclick="previewFunction("'+ service["links"][0]["href"] +'")">g</button></li>';

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Which will render as
<li><button onclick="previewFunction("somevalue")">g</button></li>

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Which is going to fail page validation

Try this
linkString += '<li><button onclick="previewFunction(\''+ service["links"][0]["href"] +'\')">g</button></li>';

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Which should render as
<li><button onclick="previewFunction('somevalue')">g</button></li>

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weaverkAuthor Commented:
perfection, i knew it was something simple like that... but i just could not see it...
many thanks for this quick response!
Julian HansenCommented:
You are welcome - thanks for the points.
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