What type of scope is present in JavaScript?

Which object is used to post data to an external process, such as savePerfData?

What is the command to run Node.js programs?

What is the method used to create an element in the HTML DOM?

What is the output of the following JavaScript code?

document.write("6 plus 5 is " + 6 + 5);

What does the Date object in JavaScript do?

What is the purpose of the simple mode in a JavaScript minifier?

In the global execution context (outside of any function), this refers to the global object irrespective of being in strict mode or not.

What are scorched-earth optimizations?

What is the fundamental rule of lexical scoping?