SharePoint SOD info
SP.SOD.execute, SP.SOD.executeFunc
Difference between SP.SOD.executeFunc & other methods: https://sharepoint.stackexchange.com/questions/148193/difference-between-sp-sod-executefunc-other-methods
Understanding SharePoint and Script On Demand (SOD): http://www.migee.com/2015/09/24/understanding-sharepoint-and-script-on-demand-sod/
SP.SOD how to use correctly? https://sharepoint.stackexchange.com/questions/58503/sp-sod-how-to-use-correctly
SHAREPOINT SCRIPTS ON DEMAND (SP.SOD) http://www.ilovesharepoint.com/2010/08/sharepoint-scripts-on-demand-spsod.html
SP.SOD Methods: https://docs.microsoft.com/en-us/previous-versions/office/developer/sharepoint-2010/ff408081%28v%3doffice.14%29
execute:Executes the specified function in the specified file with the optional arguments.
executeFunc: Ensures that the specified file that contains the specified function is loaded and then runs the specified callback function.