I'm still a relative noob when it comes to jQuery, so I'm picking bits up all the time. The latest nugget is related to a previous post on converting an HTML to JSON which included the parsing of nested structures.
When it comes to populating a form with a nested structure there is potential to fall into a rabbit hole. Thankfully in this case the foxes had scared off the rabbits before they had the chance to dig too deeply.
The original issue manifested itself upon requesting a JSON resource with nested structure from a service and populating a form. Almost the opposite of the post linked to above. I went through the process of ensuring the JSON was valid, the path in the document matched the dot notation of the form and that the field had a value associated with it. The source presented below is a simplified test case designed to isolate the issue. What you see here is a form that is populated when the button is clicked. It looks rather innocent, however the "meh.feh" field doesn't get populated; exactly what I had seen in the original issue.
Simplied Example:
jQuery is treating the "." as CSS notation not as a literal. The solution? Escape them with a double backslash.
Simple fix:
For more information check the jQuery FAQ
Regular expressions FTW!
ReplyDeletefunction jq(myid) {
return '#' + myid.replace(/(:|\.)/g,'\\$1');
}
$( jq('meh.feh') )
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