How to create wait in the angular 8.

Which tool could be used to display only rows containing presidents who served two terms

Write a program that asks the user to enter the name of an input file. if the file does not exist, the program should prompt the user to enter the file name again. if the user types quit in any uppercase/lowercase combinations, then the program should exit without any further output.

Append and make table queries are called queries. select complex simple action i think action