codecademy javascript answers

Answers and references for JavaScript question-type Q A are common issues during development. 1. How to obtain a formText in the selection part of the domain?

c.window.location= The role of "a.html" and window.location.href= "a.html" is to replace the current page with the a.html page D. Defines the global variable G; You can access the variable in a WINDOW.G way Third, questions and answers: 1, talk about the use of JavaScript array sorting method sort (), focusing on the use of sort () parameters and its internal mechanism answer: Syntax: Arrayobject.sort (Sor

-- function (i) {getnumfun[i] = fu Nction () {alert (a[i]); }}) (Len); }} /* Tofun (a); GETNUMFUN[5] (); */ 3.varObjarr =[{A:2,b:1}, {d:5}, {a:1,b:2,c:3} ];functionrule (o1,o2) {varSizeobj =function(obj) {varSize=0; for(varIinchOBJ) size++; returnsize; } returnSizeobj (O1)-Sizeobj (O2); }/*objarr.sort (rule); Console.log (Objarr[0]); */4. function Fib (n) { if(n===1| | n

status of features for Microsoft Edge and allows you t O Vote for features so you want developed? B. https://status.modern.ieA. http://ie.microsoft.comB. https://status.modern.ieC. https://edge.microsoft.comD. Http://spartan.azurewebsites.net7. True or FALSE:A hosted web App allows JavaScript on A website to call Windows Universal APIs. A. TrueA. TrueB. False8. You is developing a Hosted Web APP that retrieves content from http://www.contoso.com. You

); },10); The previous code allows the settimeout loop to trigger. However, the execution of this block of code suspends the time, so two execution times are greater than 10 milliseconds SetInterval (function () { /* code block */ },10); And the previous code, is automatically in 10 when the event hangs, so two times the interval of the event will be less than or equal to 10 milliseconds.When a thread is blocked at an event, either using SetInterval or settimeout waits f

30 javascript questions and answers that you "cannot do all" (1) 1. The running result of the following expression is: ["1", "2", "3"]. map (parseInt) A. ["1", "2", "3"] B. [1, 2, 3] C. [0, 1, 2] D. Miscellaneous 2. The running result of the following expression is: [Typeof null, null instanceof Object] A. ["object", false] B. [null, false] C. ["object", true] D. Miscellaneous 3. The running result of the

1. Use typeof bar=== "Object" to determine if bar is a potential trap for an object? How to avoid this trap?Cases:var bar=null;Console.log (typeof bar=== "Object");Output result: true;Explanation: null is considered an object in JavaScriptIf you want to avoid this trap, you also need to determine if bar is null.Cases:var bar=null;Console.log (Bar!==null) (typeof bar=== "Object");Output Result: false2, the following code in the console output what results, why?(function() { var a=b=3;}) (); Co