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...

Ngày tải lên: 06/08/2014, 09:20

... 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 alert Try...

Ngày tải lên: 06/08/2014, 09:20

... 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...

Ngày tải lên: 06/08/2014, 09:20

... 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 9 any JavaScript on the page (including the JavaScript inside the onClick of the stop timer b...

Ngày tải lên: 06/08/2014, 09:20

... 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...

Ngày tải lên: 06/08/2014, 09:20

... Detecting the position of the mouse 2 46 Chapter 13 node 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 l...

Ngày tải lên: 06/08/2014, 09:20

... 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...

Ngày tải lên: 06/08/2014, 09:20

... "HEAD", then all the PHP script should do is send the header information in X. If it is not a HEAD request, 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). An onClick inside the link calls rea...

Ngày tải lên: 06/08/2014, 09:20

... 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_ ho...

Ngày tải lên: 06/08/2014, 09:20

... 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 431 Link The hypertext ... to the upper left corner of the screen. The content area is where the web page resides. screenX FF Horizontal coordinate of the left side of the w...

Ngày tải lên: 06/08/2014, 09:20

... Text Fields 10 9 Setting the Value of a Text Field 11 0 Textareas 11 1 Checkboxes 11 2 Radio Buttons 11 4 Pull-Down Menus and Scrollable Lists 11 5 Handling Events Using Form Elements 11 6 Make 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 Co...

Ngày tải lên: 06/08/2014, 16:23

... 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...

Ngày tải lên: 06/08/2014, 16:23

... 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 8 How 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,...

Ngày tải lên: 06/08/2014, 16:23

... 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_ value is "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 bigge...

Ngày tải lên: 06/08/2014, 16:23