Amit Portnoy questions

Amit Portnoy answers

• Filter all 'null' values from an Observable<T>
• Spring boot: disable security auto configuration
• How to use @Contract annotation
• Mongoose detect database not ready
• Karma + angular-mocks TypeError: 'undefined' is not an object (evaluating 'angular.mock = {}')
• gulp.js livereload with express server?
• JavaFX: Red border for text field
• Q: Angular2: 'switchMap' does not exist on type 'Observable<Params>'
• How to push an array of objects into an array in mongoose with one call?
• Windows equivalent of the 'tail' command [duplicate]