JavaScript Interview Questions
Questions Answers Views Company eMail

What is spread operator react?

462

What is spread syntax?

471

What is stack queue?

473

What is strict mode?

706

What is the best free ide?

483

What is the difference between var and let?

479

What is the difference between an array and an object?

467

What is the difference between rootscope and scope?

451

What is the most widely used programming language?

458

What is jscript used for?

474

Is javascript default scripting language?

493

What is postback in javascript?

487

What is viewstate in javascript?

546

Is javascript backend or frontend?

472

What is servlet in javascript?

507


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Un-Answered Questions { JavaScript }

Which built-in method returns the calling string value converted to lower case?

710


java pgm for compare two vesion and print the greatest version on the console. e.g: like 1.4.2 and 1.5.2 biggest is 1.5.2 1.2.5 and 1.2.8 biggest is 1.2.8

1623


Are java and javascript the same?

533


What are undefined and undeclared variables?

491


How to get checkbox status whether it is checked or not?

524






What are the properties of stack?

495


Which built-in method calls a function for each element in the array?

593


Can you have a function within a function in javascript?

476


Why javascript is called lightweight language?

491


What is an asynchronous programming? Why is it important in javascript?

528


What causes memory leaks?

510


How and where javascript namespacing is used?

465


What are local variables in javascript?

481


Hello , I am using following java script to open new window in I.E,but i am facing an issue the new window hangs often while opening,when you move mouse it opens normally.Can any body help me why this is happening as i am unable to understand this issue?please please if any one know so kindly help me I am in real difficulty through this issue.Thanks 'if(window.clipboardData){clipboardData.setData("Text","' + a.PatID + '");}' + 'ordwindow= window.open ("' + @OrderDetailURL + '", "RXOrderDetail", "location=0,status=0,menubar=0,toolba r=0,scrollbars=1,resizable=1"); ordwindow.moveTo(parent.screenLeft,0);var x; x=new ActiveXObject("WScript.Shell");x.SendKeys("% "); x.SendKeys ("x"); //fcttest((sp_RX_ChangeOrderStatus ' + '''' + a.DocID + '''' + ', 1, ' + convert(varchar,@SessionID) + '));' As [W],

1781


Explain export & import in javascript?

596