Instruction
- Total number of questions : 10.
- Time alloted : 10 minutes.
- Each question carry 1 mark.
- No Negative marks
- DO NOT refresh the page.
- All the best :-).
| 1. |
The development environment offers which standard construct for data validation |
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Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: All these facilities are available in JavaScript. Additionally, all development environments provide syntax to create and use memory variables, constants, and functions. |
| 2. |
JavaScript Code can be called by using |
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Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: JavaScript code is as easy to be implemented and run. It can be called by using a function or a method. |
| 3. |
Consider the following snippet code var string1 = ”123”; var intvalue = 123; alert( string1 + intvalue ); The result would be |
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Your Answer: Option (Not Answered) Correct Answer: Option C Explanation: None. |
| 4. |
JavaScript is a _______________ language |
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Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: JavaScript is not a full-blown OOP (Object-Oriented Programming) language, such as Java or PHP, but it is an object-based language. |
| 5. |
Consider the following code snippet x=[1,2,3,4,5] printArray(x) function printArray(a) { var len = a.length, i = 0; if (len == 0) console.log("Empty Array"); else { do { console.log(a[i]); } while (++i < len); } } What does the above code result? |
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Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: The do/while loop is less commonly used when compared to the while loop. Here, it prints from the array in the given order. |
| 6. |
The unordered collection of properties, each of which has a name and a value is called |
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Your Answer: Option (Not Answered) Correct Answer: Option B Explanation: An object is an unordered collection of properties, each of which has a name and a value. Property names are strings, so we can say that objects map strings to values. |
| 7. |
Consider the code snippet given below var count = [1,,3];What is the observation made? |
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Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: If you omit a value from an array literal, the omitted element is given the value. |
| 8. |
The function definitions in JavaScript begins with |
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Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: The function definitions begin with the keyword function followed by an identifier that names the function and a pair of parantheses around a comma-separated list of zero or more identifiers. |
| 9. |
Consider the following code snippet : var grand_Total=eval("10*10+5");
The output for the above statement would be :
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Your Answer: Option (Not Answered) Correct Answer: Option C Explanation: Even if the string value passed as a parameter to eval does represent a numeric value the use of eval() results in an error being generated. |
Test 1