javascript client side logging

", "Africa"] The following is a JSON string converted into an array. Here an eval function is required to explain the JSON string. The eval function is used to receive a validation Javascript Code The following code often needs to convert the JSON text to the original form. VaR value = eval ("(" + jsontext + ")"); Example: function topasejsonexample (){ VaR jnbtn = Document. getelementbyid ("JN "); Jnbtn. onclick = function (){ VaR arrayasjsonte

)) {location.href= "http://www.a.com/";} else if (/ipad/i.test (navigator.useragent)) { location.href= "http://www.b.com/"}else{location.href= "http://www.c.com/"}8. History ObjectBack ()//load the previous URL in the History list (if present) is equivalent to clicking the rewind button or calling History.go ( -1) forward ()//Load History list the next URL is equivalent to clicking the Forward button or calling History.go (1) Go ()// Load a specific page in the History list//Back Page History.b

Original: Common coordinate attributes in JavaScript offset, scroll, clientToday in the Learning JS when the problem is more easily confused, so I drew a simple diagram, and with the JS console inside the output test, easy to understand. 1. In the Document object, use :scrollwidth/height: Gets the scrolling width of the object ( the width of the scroll bar can be scrolled, which is equivalent to the total width of the entire page--full width of the p

Client-side detection:(i) Capacity testingCapability detection is the ability to identify browsers.The ability to detect a particular browser before writing code. For example, a script might want to detect the existence of a function before calling it.(ii) Quirks detectionQuirks are actually bugs in the browser implementation. Quirks detection usually involves running a small piece of code and then determin

directory Validator list Server Side validator Client JavaScript validator Desc Parameter Memo Requiredstringvalidator Jsrequiredstringvalidator Required string validator Trim Javascript deal trim Stringlengthfieldvalidator Jsstringlengthfieldvalid

containerevent.offsety The vertical coordinate of the relative container4, the screen:Window.screentop The body part of the Web pageWindow.screenlfet page body part leftwindow.screen.height Screen Resolution law is highWindow.screen.left The width of the screen resolution lawwindow.screen.availHeight The height of the available workspaces for the screenWindow.screen.availWidth the width of the available workspaces for the screenDocument.documentElement.scrollTop The vertical scrolling valueWeb

containerevent.offsety The vertical coordinate of the relative container4, the screen:Window.screentop The body part of the Web pageWindow.screenlfet page body part leftwindow.screen.height Screen Resolution law is highWindow.screen.left The width of the screen resolution lawwindow.screen.availHeight The height of the available workspaces for the screenWindow.screen.availWidth the width of the available workspaces for the screenDocument.documentElement.scrollTop The vertical scrolling valueWeb

Window.screenlfet page body part left Window.screen.height screen resolution law of high Window.screen.left screen resolution law wide Window.screen.availHeight the height of the available workspaces for the screen window.screen.availWidth the width of the available workspaces for the screen Document.documentElement.scrollTo P Vertical Scrolling Value page visible area width: document.body.clientWidth; page visible Area High: document.body.clientHeight;Web page Visible Area width: document.body

Believe that every developer knows the importance of caching. There is a cached background (Memcached,xcache, etc.) from beginning to end. ) to reduce the pressure on db. In the Content distribution network (CDN) cache, you want your browser to cache those loaded resources more than once. Of course, there is client-side caching, so you don't have to repeat expensive operations (even algorithms or a lot of o