- Returns value null
- Returns exception
- Returns the value in scope
- None of the mentioned
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Consider the following code snippet var sets = com.davidflanagan.collections.sets; What is the programmer trying to do in the above code snippet?
Answer: Option 4 Rather than importing individual classes, a programmer might import the entire module to the global namespace.
1 Answers 1 views
Consider the following code snippet [x,y]=[y,x]; What is the result of the above code snippet?
Answer: Option 3 The above code snippet swaps the value of the two variables.
1 Answers 1 views
What is the value of var $var = 'HELLO WORLD!'; $var = ucfirst($var);?
Answer: Option 4 Let'
1 Answers 1 views
What will be the output of the following PHP code <php function TV($string) { echo "my favourite TV show is ".$string; function b() { echo " I am here to spoil this code"; } } function b() { echo " I am here to spoil this code"; } b(); >?
Answer: Option 1 This one works because b is declared independent of TV() also.
1 Answers 2 views
Consider the following code snippet function tail(o) { for (; o.next; o = o.next) ; return o; } Will the above code snippet work If not, what will be the error?
Answer: Option 3 The above code uses a for loop to traverse a linked list data structure and return the last object in the list. This will perfectly work.
1 Answers 4 views
Consider the following code snippet function f(o) { if (o === undefined) debugger; } What could be the task of the statement debugger?
Answer: Option 1 The debugger statement normally does nothing. If, however, a debugger program is available and is running, then an implementation may (but is not required to) perform some...
1 Answers 85 views
Consider the following code snippet function printprops(o) { for(var p in o) console.log(p + ": " + o[p] + "n"); } What will the above code snippet result ?
Answer: Option 2 The above code snippet returns undefined.
1 Answers 5 views
Consider the following code snippet function hypotenuse(a, b) { function square(x) { return x*x; } return Math.sqrt(square(a) + square(b)); } What does the above code result?
Answer: Option 1 The above code snippet contains nested function in which the function hypotenuse(a,b) has another function inside its scope, function square(x). The interesting thing about nested functions is...
1 Answers 6 views
Consider the following code snippet data.sort(function(a,b),b-a); What does the above code do?
Answer: Option 4 The above code snippet sorts an array in reverse numerical order.
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Consider the following code snippet var f = new java.io.File("/tmp/test"); var out = new java.io.FileWriter(f); out instanceof java.io.Reader What will be the output for the above code snippet?
Answer: Option 4 The output for the above code snippet is false as it is a writer and not a Reader.
1 Answers 2 views