True, this is correct. There is no relation between page purpose and page quality, because the way they rate the quality of the page depends on the appearance and content of the page.
In order to make the program recognize the clicking of a button, the engineer should add an event listener to the JavaScript code.
An event is considered to be a vital part of JavaScript because a web page responds according to the event that occurred. Some events are generated by APIs and some are user-generated events. For example, clicking or moving the mouse button and pressing a key on the keyboard are user generated events.
In order to handle the user-generated events in JavaScript, an event listener is used. An event listener is a function or procedure in a JavaScript program that waits for an event to occur; such as pressing a key on the keyboard or clicking the button. Therefore based on the scenario given in the question statement, the engineer should use an event listener to his JavaScript code so that the code can recognize the click of the button.
You can learnmore about event at
brainly.com/question/20169706
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The answer is B cause you use it to make commands
Indents? Double Space? one of those
You'll need a helper variable for this, so depending on your programming language, the solution becomes:
int helper;
helper = arr[i];
arr[i] = arr[j];
arr[j] = helper;
