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// The main program var x; function subl() {

// The main program var x; function subl() {

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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6. Consider the following JavaScript skeletal program: // The main program var X; function subl() { var X; function sub2 () { function sub3 () { Problem Set } Assume that the execution of this program is in the following unit main calls subl sub1 calls sub2 sub2 calls sub3 a. Assuming static scoping, in the following, which declaration of x is correct one for a reference to x? i. subl ii. sub2 iii. sub3 b. Repeat part a, but assume dynamic scoping.
Transcribed Image Text:6. Consider the following JavaScript skeletal program: // The main program var X; function subl() { var X; function sub2 () { function sub3 () { Problem Set } Assume that the execution of this program is in the following unit main calls subl sub1 calls sub2 sub2 calls sub3 a. Assuming static scoping, in the following, which declaration of x is correct one for a reference to x? i. subl ii. sub2 iii. sub3 b. Repeat part a, but assume dynamic scoping.
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