Show the picture to answer the question
Answer:
1. touch command
2. wall command
3.apt-get is the command-line tool for handling packages, and may be considered the user's "back-end" to other tools using the APT library
4. -rwxrw-r-
5. sudo command
6. read command is used for getting user input in a Linux shell script.
7. top command
8. ask them to use dig command.
9. Type echo $PATH at the command prompt and press ↵ Enter
10. If a process is already in execution, such as the tar command example below, simply press Ctrl+Z to stop it then enter the command bg to continue with its execution in the background as a job. You can view all your background jobs by typing jobs.
Answer:
- function processNumbers(numList){
- try{
- for(let i=0; i < numList.length; i++){
- if(isNaN(numList[i])){
- throw "All elements in the list should be numbers.";
- }
-
- }
- }
- catch(err){
- console.log(err);
- }
- }
-
- let myList = [4, 6, 1, "abc", 9];
- processNumbers(myList);
Explanation:
The solution code is written in JavaScript as the isNaN() is an in-built function in JavaScript.
Firstly, create a function processNumbers that takes one input number list, numList (Line 1).
To handle the possible Not a Number (NaN) error, create a try and catch block. In the try block, create a for-loop to traverse through the numList array and use isNaN function to check if the current value is a number (Line 3 - 4). If it is not a number, isNaN will return true and the program will run the throw statement (Line 5). The throw message will be passed to the catch block and display it on console (Line 10 - 12).
We can test the function by using the sample list (Line 15 - 16) and we shall see the thrown error message is displayed.
There are no examples you imbecile it’s A
Answer:
Spyware is the most harmful virus.
It enters into someones computer as a spy and steals the ones personal information, data and other codes.
Explanation: