
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question
1. Parameters in a function definition are placed within _____________.
|
braces |
|
parentheses |
|
single quotes |
|
double quotes |
2. What is the result of executing the code below?
var a = 1;
function show() {
var b = 2;
return a + b;
}
console.log(b);
|
Unreferenced Error |
|
2 |
|
3 |
|
NaN |
Expert Solution

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Step 1
Parameters in a function definition are placed in parantheses.
Explanation: Parameters all always in parantheses because it is a valid syntax in javascript. If you use braces or single or double quotes you will get a syntax error.
A sample function definition in javascript is as follows:
function mul(a,b){ //Here a and b are parameters
return a*b;
}
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