cissp study guide

character. A reserved word is a reserved keyword that may not be a keyword now, and may become a keyword later.6. Object and array initialization expressions are actually creating a new object or arrays. Also known as: Object direct amount, array direct amount, however they are not original expression.7, array initialization, if there is no value in the middle, can be omitted directly;var myArray = [,,, 3]; Two values are omitted in the middle and are automatically populated with undefinedvar m

9 1996" can also be accepted and parsed. However, the result Date object includes "Friday November 9 1996". JScript handles all of the standard time zones, as well as global standard times (UTC) and Greenwich Mean Time (GMT). Hours, minutes, and seconds are separated by colons. Although not all of these three items need to be specified. "10:", "10:11", and "10:11:12" are valid. Assuming a 24-hour clock is used, it is wrong to specify "PM" for the time after 12 o'clock noon.For example, "2

Chapter III1, the value of inheritance is not special, even 0 of the particularity of not. So changing the style of a hyperlink generally requires an independent declaration and cannot be changed by inheritance.2. Cascading-conflicting declarations are sorted by this cascading process and thus determine the final document representation. The core of this process is the particularity of selectors and their related declarations and the inheritance mechanism.Fifth Chapter1, Font-weight:border. Firs

12th chapter list and generated content1, List-style-type:cjk-ideographic generate 1234 of the serial number2, whether it is UL or Ol,list-style-type unrecognized values are applied to decimal.3, the list-style-image will inherit.4, Shorthand: List-style:type | Image | PositionThe 13th Chapter user interface style;1. Outlines are similar to borders, but outlines do not participate in the document Flow .2. Outlines and borders can coexist .3, the contour of the four sides of the style (including

Margin-bottom, to clear the element set Margin-top is not convenient (the reason for clearing the area).7. For a non-root element, if the position value is absolute, the containing block is the nearest position value is not a static ancestor element .8. Top/right/bottom/left applies to elements where the position value is not static. The margin boundary of the element contains the offset of the inner margin boundary (border) of the block relative to it.9. Top:auto;left:auto in Position:absolute

element node, 3 represents the text node, 8 represents the comment node, and 11 represents the DocumentFragment node .14. The children property of the element object, similar to ChildNodes, is also a NodeList object, but the children list contains only the element object .15. The text and comment nodes do not have a children property, meaning that the Node.parentnode property cannot return a text or comment node .16. The Style property value of any HTML element is a cssstyledeclaration object,

the form is submitted .7. The onchange event handler for the text input field is triggered when the user enters new text or edits an existing text, indicating that the user has finished editing and moved the focus out of the text field .8. If the user directs to a new fragment in the document, thelocation.href will change , but document. The URL does not.9, document.write () joins its string argument, and then inserts the result string into the document where the script element is called.10. Th

server contains 3 parts: 1, a number and a text-based status code to show the success and failure of the request. 2. A collection of response headers. 3, the response body. 6.get is used for regular requests , and he applies when the URL completely specifies the request resource when the request does not have any side effects on the server and when the server's response is cacheable. The post method is commonly used in HTML forms , which contain additional data in the request body and are often

less than the number of parameters specified when the function is declared, and the remaining parameters are set to the undefined value .15. You can use the annotation/*optional*/in the function definition to emphasize that the formal parameter is optional .16, identifier arguments is a reference to an argument object, an argument object is a class array object , not a real array, it is an object that happens to have a numeric indexed property.17. The argument object also defines the callee and

First chapter CSS and documentation1. Structured HTML: (Personal understanding)1. Separation of content, style and behavior2, label semantics, what kind of label do what kind of thing3. Conform to Web standards4, the structure is clear, header, content, footer. Reduce duplicate code for the public part.2. Unstructured pages make it difficult to build content indexes, reduce accessibility, and discourage maintenance.3, the candidate style sheet, the rel attribute is alternate stylesheet, if suppo

Chapter III Structure and CASCADE1. When determining which values should be applied to an element, the user agent not only takes into account the inheritance, but also considers the specificity of the declaration, and also the origin of the declaration itself, which is called Cascading. 、2, Particularity. If an element has two or more conflicting attribute declarations, the Highest-specificity declaration wins. For the value of the attribute of each ID given in the selector, add 0,1,0,0;

Problem:A s:property tag was added to the JSP page, but the page was never displayedSolve:Learn by searching and find just adding statementsReason:@taglib indicates the reference label. Import statements similar to JavaPrefix= "s" refers to the name that can be used on the page, just like the name of an object generated in Java, and can be used directly with uri= "/struts-tags"% indicates the path of the tag library. Equivalent to import a specific classSTRUTS2 Authoritative

Maven authoritative guide Study Notes (2) posted by Ryan on 2010/05/02 leave A comment (0) Go To comments POM Pom is a descriptive statement of a Maven project. It is also a "map" that you need to understand when building a Maven project" We have determined that POM is descriptive and declarative. It does not provide explicit commands as ant or make does. We also note that the concept of POM is n

${file#*.} : Take out the first one. And the string to the left: file.txt${file##*.} : Take out the last one. And the string to the left: txt${file%/*}: Take off the last bar/its right string:/dir1/dir2/dir3${file%%/*}: Remove the first/its right string: (null value)${FILE%.*}: Take off the last one. And the string to the right:/dir1/dir2/dir3/my.file${FILE%%.*}: Take out the first one. And the string to the right:/dir1/dir2/dir3/myThis article is from the "Linux is belong to You" blog, make sur

Swift2 Development Guide version 2 Study Notes (Day 47)-final keywordsUse the final keyword to declare the class, attribute, method, and subscript in the class definition. Classes declared by final cannot be inherited, and attributes, methods, and subscripts declared by final cannot be overwritten. The following is an example: Final class Person {// declared as final, indicating that it cannot be inherited

Study Notes for version 2 of Swift2 Development Guide (Day48) -- type check and conversion Inheritance occurs between the Child class and the parent class. It is an inheritance relationship of a series of classes. For example, Person is the root class in the class hierarchy, Student is the direct subclass of Person, and Worker is the direct subclass of Person. The specific implementation code of this inheri

HTML5 authoritative guide-new tag changes, file API, drag-and-drop API (brief study note 1 ),1. More semantic tag Elements2.The content type is still "text/html"The extension is still html or htm.3. Omit quotation marksIn HTML5, when the attribute value does not include characters such as null strings, 4. New Global attributesContentEditable: The main function is to allow users to edit the content in the

: _date forkey:@"Date"]; [Acoder encodeobject:_content Forkey:@"content"];}-(ID) Initwithcoder: (Nscoder *) Adecoder {anti-coding self.date= [AdecoderDecodeobjectforkeY:@"Date"]; Self.content= [Adecoder Decodeobjectforkey:@"content"]; returnSelf ;}3 Anti-Archive: queryQuerying all data Methods-(nsmutablearray*) findall{nsstring *path = [self applicationdocumentsdirectoryfile]; Nsmutablearray *listdata = [[Nsmutablearray alloc] init]; NSData * thedata =[nsdata Datawithcontentsoffile:pat

systems. 1. For uiview, we can use the following two sets of functions for conversion. Convertpoint: fromview:/convertpoint: toview: Convertrect: fromview:/convertrect: toview: The conversion process and results will be well interpreted: The blue and pink dotted boxes represent two different views (a view in blue and B view in pink). We call the rectangle to be converted M rectangle. At this point, we can see that the position of the M rectangle in a view is a blue solid rectangle, and

, and you want . The expression returns true if the object on the right has a property name called the left operand value. Note that in the array, var data=[7,8,9],7 in data returns false because , not the 7 value in the array. 12, logic and operators. The left value is computed first, and if the left side evaluates to False, then simply returns the value of the left operand, not the right operand, or the right operand if the left value evaluates to True , value and returns it as the result