Explain closures in javascript?

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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

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List different ways of empty an array in javascript?

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Is a hash table an array?

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Explain what is javascript? List some data types supported by javascript?

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How do you target a specific frame from a hyperlink in javascript?

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What is console.log()?

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Are java and javascript the same?

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How to detect the OS on the client machine in JavaScript?

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Is there any difference between javascript and jscript?

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What is client side in javascript?

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What is a closure javascript? Explain

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