Add leading zero to make constant length of string using JavaScript

var acct1="12345678"
var acct=("000000000" + acct1).slice (-9);
document.write(acct);

output =012345678

Downgrade TalenD job Version

1) Open exported job folder.
2) Find file "talend.project", open it with any text editor like notepad in windows.
3) Find tag "TalendProperties"
4) Inside that tag find following element "productVersion"
5) Change its values from "Talend Open Studio for Data Integration-5.1.1" to "Talend Open Studio for Data Integration-5.0.2", please make sure to provide full major/minor version. like 5.0.2.r78327 instead of 5.0.2