JavaScript Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

JavaScript Interview Questions

Questions Answers Views Company eMail

What are exports & imports?

966

Can you assign an anonymous function to a variable and pass it as an argument to another function?

872

What is the difference between attributes and property?

1057

What is argument objects in javascript & how to get the type of arguments passed to a function?

1084

What would be the result of 2+5+”3″?

926

What are the ways to define a variable in javascript?

992

What are escape characters in javascript?

942

what is the difference between window & document in javascript?

946

What are the data types supported by javascript?

986

What is the difference between undeclared & undefined?

929

How to have an element invoke a javascript on selection, instead of going to a new url?

916

How to create an object using javascript?

1177

How to have the status line update when the mouse goes over a link (the support of the status line is sporadic)?

983

Explain unescape() in javascript?

934

What does the term sticky session mean in a web-farm scenario?

977

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Un-Answered Questions { JavaScript }

Can you pass a anonymous function as an argument to another function?

1139

What does double mean in javascript?

1127

Who created npm?

921

Explain the role of deferred scripts in javascript?

953

Is it possible make a call to server side event of any button using javascript?

943

What is an onclick?

927

Is everything in javascript asynchronous?

901

Can I declare a variable as CONSTANT in JavaScript?

987

What is viewstate in javascript?

1036

Why javascript is called lightweight language?

901

Can you access Cookie using javascript?

996

What is the difference between undefined and not defined in JavaScript?

1008

What is enum data type?

944

How to detect browser name using JavaScript?

1037

The below script is working Internet browser but not working in mozilla plz find that good way... function doSubmit(op){ var rowcount=document.getElementsByName ("parameterTypeId").length; var parameterGrade; var performance; var goal; if(op == "save"){ for (var i=0; i < rowcount; i++) { var param=eval("document.forms [0].parameterGrade"+i); if(param.value != "select"){ return true; } } alert("Please rate atleast one attribute"); return false; }//if ends here

2567

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