CRT-600 무료 덤프문제 온라인 액세스

Given code below:
setTimeout (() => (
console.log(1);
). 0);
console.log(2);
New Promise ((resolve, reject )) = > (
setTimeout(() => (
reject(console.log(3));
). 1000);
)).catch(() => (
console.log(4);
));
console.log(5);
What is logged to the console?

• A.2 5 1 3 4
• B.1 2 5 3 4
• C.1 2 4 3 5
• D.2 1 4 3 5

Refer to code below:
Let a ='a';
Let b;
// b = a;
console.log(b);
What is displayed when the code executes?

• A.Null
• B.ReferenceError: b is not defined
• C.A
• D.Undefined

Considering the implications of 'use strict' on line 04, which three statements describe the execution of the code?
Choose 3 answers

• A.'use strict' has an effect between line 04 and the end of the file.
• B.Line 05 throws an error.
• C.'use strict' is hoisted, so it has an effect on all lines.
• D.'use strict' has an effect only on line 05.
• E.z is equal to 3.14.

Universal Container(UC) just launched a new landing page, but users complain that the website is slow. A developer found some functions that cause this problem. To verify this, the developer decides to do everything and log the time each of these three suspicious functions consumes.
console.time('Performance');
maybeAHeavyFunction();
thisCouldTakeTooLong();
orMaybeThisOne();
console.endTime('Performance');
Which function can the developer use to obtain the time spent by every one of the three functions?

• A.console.timeLog()
• B.console.timeStamp()
• C.console.trace()
• D.console.getTime()

A developer at Universal Containers creates a new landing page based on HTML, CSS, and JavaScript TO ensure that visitors have a good experience, a script named personaliseContext needs to be executed when the webpage is fully loaded (HTML content and all related files ), in order to do some custom initialization.
Which statement should be used to call personalizeWebsiteContent based on the above business requirement?

• A.Document.addEventListener('''DOMContextLoaded' , personalizeWebsiteContext);
• B.window.addEventListener('onload', personalizeWebsiteContext);
• C.window.addEventListener('load',personalizeWebsiteContext);
• D.document.addEventListener(''onDOMContextLoaded', personalizeWebsiteContext);