What is the difference between ‘var’ and ‘let’ keyword?
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Explain promise in javascript?
Which built-in method returns the characters in a string beginning at the specified location?
What is class example?
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
Is javascript array dynamic?
Explain hoisting in javascript?
What does the operator do in javascript?
Is JavaScript case sensitive? Give an example?
What do you mean by enumeration?
How to count the number of element in an array using javascript?
What is lazy loading java?
What can be the challenges during testing a program or a system?