the book of javascript 2nd edition phần 1 pptx
the book of javascript 2nd edition phần 1 pptx
... Analysis of Figure 11 -11 210 Summary 213 Assignment 214 12 SAVING VISITOR INFORMATION WITH COOKIES 215 A Real-World Example of Cookies 216 What Are Cookies? 216 What Cookies Can and Can’t Do 217 Working ... 411 alert() 413 Anchor 413 Applet 413 Area 414 Array 414 Button (Including Submit and Reset Buttons) 416 Checkbox 417 clearInterval() 417 clearTimeout() 417 confirm() 418 Date 418 Document 4 21 elements[] ... Website The Book of JavaScript website (http://www.bookofjavascript.com) contains the code examples from each chapter, archived copies of many of the web-sites mentioned, and lots of script...
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the book of javascript 2nd edition phần 2 pot
... click the link, an alert box should come up and say Off to the Book of JavaScript! (Figure 4-6). When you click OK in the box, the page should load the Book of JavaScript website.Figure 4-6: The ... "alert('Off to the Book of JavaScript! ');">Visit the Book of JavaScript website</a>Figure 4-5: A link that calls an alertTry putting the link with the onClick into one of your ... window.open("http://bookofjavascript.com", " ;book_ of_ javascript& quot;,"width=605,height=350" );Figure 5-5 shows the result.Figure 5-5: The Book of JavaScript window opened with aheight of...
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the book of javascript 2nd edition phần 3 pot
... the mouse JavaScript directs your browser to a page of information about that chapter. Figure 7 -3 shows the navigation element on the Book of JavaScript home page.Figure 7 -3: The Book of JavaScript home ... sets the left border of the window you’re moving. If you move the left border of the window into the center of the screen, the window will be too far to the right. To get the window to the center ... it. The function multiplyTheFields() does all the work. The code in X of Figure 7-16 looks up the value of the text field field_one (]) inside the formmy_form, located in the document of the...
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the book of javascript 2nd edition phần 4 doc
... X. The first line in the body of the func-tion then swaps the image stored in position 0 of the_ images with the image on the page. If rotateImage(1) was called instead of rotateImage(0), the ... species of ants live in various counties in the 1 54 Chapter 9any JavaScript on the page (including the JavaScript inside the onClick of the stop timer button) to access and change the_ timeout.Building ... elements (the boxes with the words array of in them) get automatically created arrays.Figure 8-3: Part of the DOM showing arrays in the document objectEach of these arrays is built based on how the...
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the book of javascript 2nd edition phần 5 docx
... indexOf(), the lastIndexOf() method gives you the position of the last occurrence of a character or substring. Table 11-1 shows the value of various calls to indexOf() and lastIndexOf() when the ... string. The variable two_slashes holds the value 5 because the two slashes start at position 5. Line Y grabs everything two characters from the beginning of the two slashes until the end of the ... of the upper-left corner and the x and y coordinates of the lower-right corner, in pixels. So the first area in Figure 10-19 goes from the (9, 23) point of the image to the (41, 42) point of...
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the book of javascript 2nd edition phần 6 pot
... Detecting the position of the mouse 2 46 Chapter 13node to the end of the list of the parent’s children. If our parent is the body of the document, that puts the div at the end of the document. ... along the colon. It then loads the first part of the element into the_ property and the second part into the_ value. The first time through the loop, the_ property is "name" and the_ valueis"thau". ... DescriptionparentNodeParent node of the nodechildNodesList of the children of the nodefirstChildFirst child of the nodelastchildLast child of the nodenextSiblingNext node, which is a child of this node’s...
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the book of javascript 2nd edition phần 7 ppsx
... into which the results of the script will be placed. The ems you see in the style of the div set the width of the div equal to some multiple of the width of the letter m (em) in the font being ... browser, the script will automatically adjust the width of the div. The JavaScript code will automatically change the height of the div as the number of results to be shown changes.Notice that the ... as the second parameter, the old contents of the file are deleted. Therefore, if you want to edit the contents of a file, you should first read the contents of the file into a variable, then...
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the book of javascript 2nd edition phần 8 ppsx
... "HEAD", then all the PHP script should do is send the header information in X. If it is not a HEADrequest, then the body of the if-then clause reads the contents of the file into the $contents ... false;">odysseus</a> The body of the link is the name of the available list (shown here as odysseus).AnonClick inside the link calls readyDisplayList() when clicked, which pulls the name of the list.Once the ... lists the client-side portion of the application. Clicking the Read the File button in the form at the bottom calls the callReadFile() func-tion and sends it the name of a file to read. The...
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the book of javascript 2nd edition phần 9 ppt
... Date();var the_ hours = the_ date.getHours();If the clock on the computer running the JavaScript thinks it’s 8 PM, the_ hours contains the number 20.Methods for Getting the UTC Date and Time The following ... the_ hours = the_ hours - 4; } else if (the_ zone == "sanfran") { the_ hours = the_ hours - 7; } else if (the_ zone == "tokyo") { the_ hours = the_ hours + 9; } // now fix the ... between 190 0 and 199 9, four digits otherwisesetUTCDate()Sets day of the month as an integer from 1 to 31setUTCFullYear()Sets the year as a four-digit numbersetUTCHours()Sets the hour as...
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the book of javascript 2nd edition phần 10 pot
... parameters: the position of the first character of the substring and the length of the substring. Similar to the substring() method. Reference to JavaScript Objects and Functions 431Link The hypertext ... to the upper left corner of the screen. The content area is where the web page resides.screenXFF Horizontal coordinate of the left side of the windowscreenYFF Vertical coordinate of the ... it. Takes three param-eters: the URL of the window to open, the target name of the window, and a comma-delimited list of features the window should have. Some of the features, such as width...
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THE BOOK OF JAVASCRIPT, 2ND EDITION phần 1 pps
... Text Fields 10 9Setting the Value of a Text Field 11 0Textareas 11 1Checkboxes 11 2Radio Buttons 11 4Pull-Down Menus and Scrollable Lists 11 5Handling Events Using Form Elements 11 6Make this ... Analysis of Figure 11 -11 210 Summary 213 Assignment 214 12 SAVING VISITOR INFORMATION WITH COOKIES 215 A Real-World Example of Cookies 216 What Are Cookies? 216 What Cookies Can and Can’t Do 217 Working ... Loops 12 8while Loops and Arrays 12 9Going Off the Deep End 13 0Using array.length in Your Loop 13 1An Incremental Shortcut 13 1Beware of Infinite Loops 13 1for Loops 13 2How AntWeb Checks Off...
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THE BOOK OF JAVASCRIPT, 2ND EDITION phần 2 ppsx
... sets the left border of the window you’re moving. If you move the left border of the window into the center of the screen, the window will be too far to the right. To get the window to the center ... see whether thisIsThau contains the value true. Instead, I’m just putting the variable inside the if-then test parentheses. The if-then rule states, “If the thing inside the parentheses is ... click the link, an alert box should come up and say Off to the Book of JavaScript! (Figure 4-6). When you click OK in the box, the page should load the Book of JavaScript website.Figure 4-6: The...
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THE BOOK OF JAVASCRIPT, 2ND EDITION phần 3 doc
... shows you what each of these elements looks like, and Figure 7-7 shows you the HTML used to draw Figure 7-6. 136 Chapter 8How the Book of JavaScript Tip Box Works The Book of JavaScript website ... most of the part identifying the form, window.document .the_ form, with the word this, which refers to the thing that contains it. For example, in X of Figure 7-25, the code that looks for the ... track of how many answers the visitor answered correctly. The code in Y and Zgives the visitor one point if he or she clicked the checkbox next to the first question; Y fetches the value of the...
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THE BOOK OF JAVASCRIPT, 2ND EDITION phần 5 ppt
... along the colon. It then loads the first part of the element into the_ property and the second part into the_ value. The first time through the loop, the_ property is "name" and the_ valueis"thau". ... brainteaser—find all the Fs in the text.In the HTML, the block of text is contained in a div. Clicking on the link makes the Fs bigger by replacing the contents of the div with a string of HTML that ... greater than the last position of the substring. In other words, the substring grabs characters from the first parameter of the call up to, but not including, the second parameter of the call....
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