Answer Posted / rajeshwar

Hi,

I think the above answer will not work for java script as
per my knowledged.

$variable_name are used in php but not in javascript. To
acheive the requirement in java just remove $ symbols.

var a="hello";
var b="world";

var concat= a+b; alert(concat);

How can the os of the client machine be detected?

906

---

What are the different boolean operators in JavaScript?

944

---

How are javascript and ecma script related?

942

---

How to write a comment in javascript?

1126

---

How to determine the state of a checkbox using javascript?

1215

---

What is javascript tree shaking?

987

---

Explain javascript event delegation model?

980

---

What is bom?

907

---

Can you explain how inheritance works in javascript?

932

---

what is a code in vb amount display in words

1940

---

What is the use of a map object in javascript?

963

---

What is null in programming?

1128

---

What does 3+4+"7" evaluate to?

878

---

How to shift and unshift using javascript?

975

---

How to get checkbox status whether it is checked or not?

931

---