Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Which exception does the Iterators throw from their next() method when there are no more values to iterate, that work on finite collections?
(a) Exit Iteration
(b) Abort Iteration
(c) Abort
(d) Stop Iteration
The correct answer is (d) Stop IterationThe best explanation: Iterators that work on finite collections throw Stop Iteration from their next() method when there are no more values to iterate. Stop Iteration is a property of the global object in JavaScript 1.7. Its value is an ordinary object (with nRead more
The correct answer is (d) Stop Iteration
The best explanation: Iterators that work on finite collections throw Stop Iteration from their next() method when there are no more values to iterate. Stop Iteration is a property of the global object in JavaScript 1.7. Its value is an ordinary object (with no properties of its own) that is reserved for this special purpose of terminating iterations. Note, in particular,that Stop Iteration is not a constructor function like TypeError() or RangeError().
See lessThe libraries that build a new higher-level API for client-side programming is ____________
(a) Library
(b) Framework
(c) APIs
(d) Script
Correct option is (b) FrameworkBest explanation: Many web developers find it useful to build their web applications on top of a client side framework library. These libraries are “frameworks” in the sense that they build a new higher-level API for client-side programming on top of the standard and pRead more
Correct option is (b) Framework
Best explanation: Many web developers find it useful to build their web applications on top of a client side framework library. These libraries are “frameworks” in the sense that they build a new higher-level API for client-side programming on top of the standard and proprietary APIs offered by web browsers: once you adopt a framework, your code needs to be written to use the APIs defined by that framework.
See lessWhat is the purpose of using the async attribute in the script tag?
(a) Load the script asynchronously
(b) Load the script synchronously
(c) Load the page asynchronously
(d) Load the page synchronously
Right choice is (a) Load the script asynchronouslyTo elaborate: The async option is a native attribute that will tell the browser to load the script asynchronously. The async attribute is a boolean attribute. When present, it specifies that the script will be executed asynchronously as soon as it isRead more
Right choice is (a) Load the script asynchronously
To elaborate: The async option is a native attribute that will tell the browser to load the script asynchronously. The async attribute is a boolean attribute. When present, it specifies that the script will be executed asynchronously as soon as it is available.
See lessThe node directly above a node is called __________
(a) sibling
(b) child
(c) parent
(d) ancestors
The correct option is (c) parentThe best explanation: The node directly above a node is the parent of that node. In HTML, the document itself is the parent node of the HTML element, HEAD and BODY are child nodes of the HTML element.
The correct option is (c) parent
The best explanation: The node directly above a node is the parent of that node. In HTML, the document itself is the parent node of the HTML element, HEAD and BODY are child nodes of the HTML element.
See lessWhich of the following is used to run ad hoc R commands?
(a) R Console
(b) R Primer
(c) Both R Console and R Primer
(d) R timer
Correct option is (a) R ConsoleTo explain I would say: Interactive data analysis usually occurs on the R console that executes commands as you type them. R Console is a command-line environment for running ad hoc R commands.
Correct option is (a) R Console
To explain I would say: Interactive data analysis usually occurs on the R console that executes commands as you type them. R Console is a command-line environment for running ad hoc R commands.
See lessWhat is the purpose of the transport layer?
(a) TCP Communication takes place
(b) UDP Communication takes place
(c) Both TCP and UDP Communication takes place
(d) IP communication
The correct option is (c) Both TCP and UDP Communication takes placeExplanation: The transport layer is the layer in the open system interconnection (OSI) model responsible for end-to-end communication over a network. The Transport layer is where our TCP (or UDP) communication takes place.
The correct option is (c) Both TCP and UDP Communication takes place
Explanation: The transport layer is the layer in the open system interconnection (OSI) model responsible for end-to-end communication over a network. The Transport layer is where our TCP (or UDP) communication takes place.
See lessWhich of the following property indicate the total size of the heap?
(a) heapSize
(b) totalHeapSize
(c) totalJsHeapSize
(d) totalHeap
The correct answer is (c) totalJsHeapSizeTo explain I would say: usedJsHeapSize stores an object created with MemoryInfo constructor, containing jsHeapSizeLimit, totalJSHeapSize and usedJSHeapSize properties with numerical values.
The correct answer is (c) totalJsHeapSize
To explain I would say: usedJsHeapSize stores an object created with MemoryInfo constructor, containing jsHeapSizeLimit, totalJSHeapSize and usedJSHeapSize properties with numerical values.
See lessWhat is the purpose of the parameter $value?
(a) Field’s expected value
(b) Field’s previous value
(c) Field’s current value
(d) Field’s probability value
Right option is (c) Field’s current valueEasy explanation: getinputhtml() accepts two arguments: $name and $value. The parameter $value is the field’s current value (either from the DB, or the POST data if there was a validation error).
Right option is (c) Field’s current value
Easy explanation: getinputhtml() accepts two arguments: $name and $value. The parameter $value is the field’s current value (either from the DB, or the POST data if there was a validation error).
See lessThe class that represents the regular expressions is ________
(a) RegExpObj
(b) RegExpClass
(c) RegExp
(d) StringExp
Correct answer is (c) RegExpThe explanation is: Regular expression is an object that describes a pattern of characters. The JavaScript RegExp class represents regular expressions, and both string and RegExp define methods that use regular expressions.
Correct answer is (c) RegExp
The explanation is: Regular expression is an object that describes a pattern of characters. The JavaScript RegExp class represents regular expressions, and both string and RegExp define methods that use regular expressions.
See lessWhich of the following attribute takes the source of the PHP file?
(a) img
(b) src
(c) source
(d) psrc
The correct answer is (b) srcFor explanation: Php file is used an scripting language for backend development. The syntax to referencing a PHP file using external JavaScript is consistent enough with what we already know:
The correct answer is (b) src
For explanation: Php file is used an scripting language for backend development. The syntax to referencing a PHP file using external JavaScript is consistent enough with what we already know:
See less