What will be output of following JavaScript code?
11. What will be the output of the following JavaScript code? Explanation: The if else statement is a part of the javascript conditioning statements. The line of code inside the “if” statement is executed if the value passed to “if” is 1.
Which of the following is correct about JavaScript Mcq?
Discussion Forum
| Que. | Which of the following is correct about JavaScript? |
|---|---|
| b. | JavaScript has object-oriented capabilities that allows you to build interactivity into otherwise static HTML pages. |
| c. | The general-purpose core of the language has been embedded in Netscape, Internet Explorer, and other web browsers. |
What does the following JavaScript code do?
Explanation: JavaScript is designed for the following purpose: to style HTML pages b. to execute Queries related to databases on a server c. to add interactivity to html pages d. to perform server side scripting operations e.
What will be the output of the following JavaScript code VAR a1?
What will be the output of the following JavaScript code? Explanation: Array a1 is defined with null values. Therefore we can access the indexes 0, 1 and 2.
What will be the output of the following JavaScript statement var total Eval 10 * 10 5 );?
Discussion Forum
| Que. | Consider the following code snippet : var grand_Total=eval(“10*10+5”); The output for the above statement would be : |
|---|---|
| b. | 105 as a string |
| c. | 105 as an integer value |
| d. | Exception is thrown |
| Answer:105 as an integer value |
What will be the output of the following PHP code?
2. What will be the output of the following PHP code? Explanation: The statement should be print_r(‘Hello World’) to print Hello world. Also if there is only one line then there is no requirement of a semicolon, but it is better to use it.
Which of the following is correct features of JavaScript?
Q 3 – Which of the following is correct about features of JavaScript? A – JavaScript is is complementary to and integrated with HTML.
What is JavaScript in HTML?
JavaScript is a text-based programming language used both on the client-side and server-side that allows you to make web pages interactive. Where HTML and CSS are languages that give structure and style to web pages, JavaScript gives web pages interactive elements that engage a user.
What is the output of the following code snippet var A?
Discussion Forum
| Que. | Consider the following code snippet : var a = [1,2,3,4,5]; a.slice(0,3); What is the possible output for the above code snippet ? |
|---|---|
| b. | Returns [4,5] |
| c. | Returns [1,2,3,4] |
| d. | Returns [1,2,3,4,5] |
| Answer:Returns [1,2,3] |
What type of code is JavaScript?
The program is executed from a binary format, which was generated from the original program source code. JavaScript is a lightweight interpreted programming language. The web browser receives the JavaScript code in its original text form and runs the script from that.
What will be the role of the continue keyword in the following JavaScript code snippet?
What will be the role of the continue keyword in the following JavaScript code snippet? Explanation: Instead of exiting a loop like the break keyword, the continue keyword moves to the next iteration from the place encountered. While the break statement breaks out of the loop.
What is the observation made in the following JavaScript code var count 1 3?
Discussion Forum
| Que. | Consider the code snippet given below: var count = [1,,3]; What is the observation made? |
|---|---|
| b. | This results in an error |
| c. | This results in an exception |
| d. | None of the mentioned |
| Answer:The omitted value takes “undefined” |
What would be the result of 1 2 3 in JavaScript?
1+ +”2″+3 results 6 1+”2″+3 results “123” AS The unary + operator converts its operand to Number type. +”2″ is a way to cast the string “2” to the number 2 . The remain is a simple addition.
What is divided by zero var a 10 JavaScript?
In JavaScript, division by zero yields Infinity .