Length of string.
(When the web page runs, if the interface is not the same as above, will not be considered for grading)
Assume users fill the value for the textfield (called str), when users click "EXECUTE" button:
a. Check exist: If list of execution (table) exists an item containing the str string and option, show the error text "Execution existed!". (1.0 point)
When input string and choose an option
After clicking the "EXECUTE" button
Enter a string (str): Hello
Enter a string (str): Hello
Choose an option:
Length of string
Choose an option:
Result:
Length of string
Result:
EXECUTE
String str
Option
Result
EXECUTE
Execution existed!
Hello
Length of string 5
String str
Option
Result
Hello
Length of string 5
Otherwise, make the request b.
b. Execute: (1.5 point)
=>
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