CAML and SharePoint folders

make sure the query is recursive

e.g.
'</In></Where><QueryOptions><ViewAttributes Scope=\'Recursive\' /> </QueryOptions></Query></View>';


later I found this to work better

<View Scope="RecursiveAll">

nice pattern for jsom async calls

pass the call backs as parameters to the function



function getSiteField(fieldName,success,failure)
{
     var ctx = SP.ClientContext.get_current();
     var rootWeb = ctx.get_site().get_rootWeb();
     var field = rootWeb.get_availableFields().getByInternalNameOrTitle(fieldName);
     ctx.load(field);
     ctx.executeQueryAsync(
         function(){
            success(field)
         },
         failure);
}
SP.SOD.executeFunc('SP.js', 'SP.ClientContext', function() {

   //get Title column and print its properties
   getSiteField('Title',
    function(field){
       //print field properties
       console.log(field.get_title());
       console.log(field.get_internalName());
       console.log(field.get_typeAsString());
       console.log(field.get_description());
    },
    function(sender,args){
       console.log(args.get_message());
    });

});

got it here

don't use includes

use indexOf instead (ie etc)

source in sharepoint forms url

use decodeURIComponent to convert ampersands to url encoding

popups in sharepoint

the form needs to be created from webpart

no shown title for webpart

add a value of spaces

Uncaught ReferenceError

good chance the js file is malformed