Which of the following is not considered as an error in JavaScript?
Syntax error
Missing of semicolons
Division by zero
All of the mentioned
Answer : C
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1) Assume that we have to convert “false” that is a non-string to string. The command that we use is (without invoking the “new” operator)
false.toString()
String(false)
String newvariable=”false”
Both false.toString() and String(false)
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2) The purpose of extensible attribute is to
make all of the own properties of that object nonconfigurable
to configure and bring a writable property
“lock down” objects into a known state and prevent outside tampering
all of the mentioned
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3) Why JavaScript is called as Lightweight Programming Language ?
because JS is available free of cost
because JS is client side scripting
because we can add programming functionality inside JS
because JS can provide programming functionality inside but up to certain extend.
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4) The snippet that has to be used to check if “a” is not equal to “null” is
5) The object has three object attributes namely
Class, parameters, object’s extensible flag
Prototype, class, objects’ parameters
Prototype, class, object’s extensible flag
Native object, Classes and Interfacces and Object’s extensible flag
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