What is Javascript namespacing? How and where is it used?

1025

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What kind of conditional statements does JavaScript support?

970

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What is ‘this’ keyword in JavaScript?

982

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How can the style/class of an element be changed?

973

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Explain the difference between “==” and “===”?

1062

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Which symbol is used for comments in Javascript?

1775

---

What is callback?

1172

---

Enumerate the differences between Java and JavaScript?

1207

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How to create an object in javascript?

1205

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What are global variables? How are these variable declared and what are the problems associated with using them?

962

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What would be the result of 3+2+”7″?

1463

---

What are undeclared and undefined variables?

1003

---

Which company developed JavaScript?

1031

---

What is the use of isNaN function?

942

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Explain the working of timers in JavaScript? Also elucidate the drawbacks of using the timer, if any?

994

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