Issue type:

[ ] question
[ ] bug report
[x] feature request
[ ] documentation issue

Database system/driver:

[ ] cordova
[ ] mongodb
[ ] mssql
[ ] mysql / mariadb
[ ] oracle
[ ] postgres
[ ] cockroachdb
[ ] sqlite
[x] sqljs
[ ] react-native
[ ] expo

TypeORM version:

[x] latest
[ ] @next
[ ] 0.x.x (or put your version here)

Sql.js recently released v1.0, now compiled to WebAssembly. It has a new API for creating a connection, see docs on upgrading

Supporting the new API should only involve a rather minor change to SqljsDriver.createDatabaseConnectionWithImport() which I will attempt in a PR to follow.