While reviewing wireless survey reports, an intern asks a wireless engineer about the term noise floor. What is the definition of noise floor? Noise floor is the decreasing of the…
You want to measure how long a certain piece of code executes. In order to do so, it is enough to precede the code fragment with: the command console.time("counter") and end with console.timeEnd("counter").…
Where in the debugger can you find the information about the currently called functions in your program? In the call stack window. In the console. In the watch window. There is no access to such…
Using the debugger, we insert a breakpoint in the code at which, after running the program, we stop. In the debugger, we find a Step button among the step-by-step operation…
What is the name of the place where program code execution is halted? pausepoint exitpoint stoppoint breakpoint Explanation & Hint: A breakpoint is a designated point in the code where…
Analyze the following code: try { ocnsole.log("start"); } catch (error) { console.log("error"); } console.log("end"); What will happen as a result of its execution? The operation of the program will be…
Analyze the following code: let x 10; console.log(x); What exception will be thrown as a result of its execution attempt? TypeError RangeError ReferenceError SyntaxError Explanation & Hint: The code contains…
Analyze the code below: "let x = 10"; console.log(x); What exception will be thrown as a result of its execution attempt? RangeError TypeError SyntaxError ReferenceError Explanation & Hint: The code…
Logical errors that we make while writing a program are not indicated by the interpreter. Why? The interpreter does not indicate errors while the program is running, because it detects…
Which of the following is a syntax error? Attempting to modify the value of a constant. Missing parenthesis ending a condition in an if statement. Attempting to call a non-existent function. Attempting to read…
If a function is to return some calculated value on completion, which keyword will you use to do this? return; ret; yield; function; Explanation & Hint: To return a calculated…
Analyze the following code: let show = function () { console.log("test");} setTimeout(show, 2000); What happens when you execute it? The console to display test after a 2000-second delay. The console to display show after a…
A callback function is a function that: is passed to another function as an argument and only called in its code. contains a reference to itself in its code. is always executed…
We can use the forEach method to pass through the elements of an array. Which of the following code snippets will display all consecutive elements of the animals array in…
The following arrow function has been defined: let multiply = (m, n) => m * n; How would you rewrite the function without changing what it does? Select the correct…
You have defined a function using the following function expression: let sum = function (a, b) { return (a + b); } What could the definition of the corresponding arrow…
Analyze the following code: let x = 10; function test() { let x = 20; console.log(x); } What will be displayed in the console as a result of its execution?…
Analyze the code below: function test(counter) { console.log("test"); if (counter > 0) test(--counter); } test(3); How many times will the word "test" be displayed in the console? 0 2 4…
The code snippet: function test() { } is: the declaration of the test variable in which the values returned by the completed function will be stored. the declaration of an empty test function. incorrect, as…
Examinez l'illustration. Un administrateur tente de configurer le commutateur mais reçoit le message d'erreur affiché sur l'illustration. Quel est le problème ? La commande complète, configure terminal , doit être utilisée. L'administrateur…