Upgrade EXTJS 4 to 6

Hi it will take very less time to upgrade ext 4 to ext 6. can i see the application to estimate that in how many days it will be completed. Thanks.

Hello This is Kiran, I have 6+ years of experience in Sencha ExtJS and Java. Can help you to estimate and i can also take up the work for migration. I have recently migrated a sencha touch application to ExtJS 6.x modern a mobile app. Looking forward for your reply.

Hello. Nice to meet you. I have experience with ExtJS 3.3~lastest version , Sencha UI. I will do your project asap. Thank you.

Hi There... Based on your requirements, i have strong feeling that i could be the best fit for your "ExtJS 5 Grid Multi-Level groupping" job for the following facts: -] I have proven experience & deep understanding on ExtJS 3, 4, 5 & 6 (Modern & Classic), D3.js, Ext Desk, Sencha Touch2, Sencha Architect & Other JavaScript libraries. -] Developed 25 + big Extjs projects like scrum, patent & form designing environment. Including recently done 3 projects with Sencha 6. # Can you please clarify these upfront questions: -] As i am getting the concern requirement is for "Upgrading EXTJS 4 to 6" - Am i right? -] I assume you have existing ionic EXTJS project source code? - So can you please share the source code, So i can glean the information from there? -] What is exact Extjs version you were used for your concern ExtJs app? -] Do you have the list of aspects which to be done in order of [Fixing The Issues, Resolving a defect & finishing app bugs? - If yes, Can you please share the concern list in advance? -] Is there any UI enhancement tasks also? -] Is the app fetches request (API) from database - if yes then i assume you already have webservices (API) - Am i right? Awaiting Reply Thanks

I work with ExtJS for more then 3 years , from version 3.4 to 6. I have experience with code review. I don't have experience with Java, but i think the review will be only on ExtJs code. Depends on the size of the project