SwitchMap is an RxJs operator which allows us to trigger some emission whenever another observable emit a value. How does the switchMap operator work? SwitchMap...
Something need to know about javasciprt array… Array in javascipt, actually array call javascript type object, to check with type “typeof arrayName” Javascript array index...
lenght, toUpperCase, toLowerCase includes, startsWith and endsWtih -> boolean(true or false) Includes, startsWith, endsWtih return booleans value(true or false). Includes used to search words or...