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Merge digi-sign endorsement

rxjs combined latest is used to combine two observable streams into one which then emits two values in parallel the operator combines the result of the two observables data and selected date however the combined observable only emits a value if both observables have emitted at least one value the data structure of the combined observable is an array where the first element is the first observable you passed into the combined latest function in our case the green bubble the second is the second and so on we want to show data depending on the selected date for this we create some mock data of persons hello [Music] we are going to combine two observables selected date and the data structure let's create an observable of persons first after this we create a selected date we are using string representations here to make it even more simple it cannot be mentioned often enough that it is essential that both observables have at least one value emitted for the combined observable to work the off function emits a value directly after subscribe now let's create a new property filtered data where we use the combine latest function we pass in the two observables we just created [Music] inside the pipe function we use the map operator to filter our array of persons so that only persons with a specific birth date are passed through the pipe to see the result we subscribe to the filter data observable which has created and locked the result in the console if you want to see more about rxjs then hit the subscribe button and let me know in the comments