Details about how to jump to the js interface and pass the value. The functions of this example are as follows: Register page (Register. js), click registration, and jump to the registration result page (RegisterResult. js), and pass the registered mobile phone number to the past, indicating that xx registration is successful.
Index. Android. js
'Use strict 'import React, {Component} from 'react'; import {AppRegistry, Navigator, BackAndroid} from 'r
HTML5 practice and analysis: offline applications
Offline Web applications can run when devices cannot access the Internet. HTML5 focuses on offline applications and focuses on developers' wishes. The steps for Offline Application Development are as follows: First, you should know whether the device can access the Internet, and then you should be able to access certain resources (such as CSS and JavaScript). Only in this way can you work normally.
Offline Detection
To develop an offline Web
, attributes, and functions" that are not specified in the ECMA-262 ". The ECMA-262 describes these additions as new properties for new objects or objects not given in the Specification
A compliant implementation can support the "Program and regular expression syntax" that is not defined in the ECMA-262 (meaning it can be replaced or extended with built-in Regular Expression support)
All ECMAScript implementations must comply with the above standards.
3. ECMAScript support in Web browsers
Netsc
Go to http://www.51obj.cn /? P = 368
I used to check the navigator. useragent string to determine the browser type.
Switch (navigator. useragent. tolowercase (). indexof ("MSIE") // Firefox | opera | safari | MSIE{Case (-1 ):Alert ("dom Browser ");Default:Alert ("IE browser ");}F
Today, I read an article about how users can change the useragent in Some browsers, so that they cannot simply use this method
Talk is cheap,show me your code.
The history of JavaScriptIn 1995, Netscape Company's Brenda Eich for Netscape Navigator 2 began developing a scripting language called LiveScript (also used in the browser and server, on the server named Livewire). In order to complete the development on schedule, Netscape and Sun Company established a development alliance.On the eve of the release of Netscape Navigator
display data as tags
The tdbtext component is a read-only data control, which is very similar to the tlabel component and the tstatictext component. The tdbtext component can display data as labels to mark other controls. For example, you can use a tdbtext component to display the fish name (common_name field) under the fish image, as shown in Figure 12.1.
The tdbtext component must specify a field. When you use a navigator or other means to browse r
manifest to cache resource files and then support offline access. However, with the development of the Internet, especially the popular concept of Web2.0, the data submitted by users has gradually become the mainstream of the Internet. When developing a web application that supports offline processing, you must consider how to allow users to operate data offline. Offline data is stored locally. After being online, data is synchronized to the server. To achieve this, developers must first know w
system is iPad, you only need to determine if (OS. isIpad ){}.
Browser:
Var bw = (function () {var UserAgent = navigator. userAgent. toLowerCase (); return {isUc:/ucweb /. test (UserAgent), // UC browser isChrome:/chrome /. test (UserAgent. substr (-33,6), // Chrome browser isFirefox:/firefox /. test (UserAgent), // Firefox isOpera:/opera /. test (UserAgent), // operabrowser isSafire:/safari /. test (UserAgent )! /Chrome /. test (UserAgent), // saf
Eich), who worked at Netscape (Netscape), was working on a problem similar to "validating before submitting data to the server". Netscape Navigator 2.0 teamed up with Sun to develop a scripting language called LiveScript. For marketing convenience, then renamed JavaScript (the goal is to cool the tree under the Java lesson).The wicked laterBecause JavaScript 1.0 is so successful, Microsoft has also decided to move into the browser, release IE 3.0 and
Security | security Vulnerabilities
Involving procedures:Netscape 4.0-4.74
Describe:Netscape Fixes JAVA security vulnerabilities
With:Netscape JAVA Security Vulnerability patch--------------------------------------------------------------------------------
Netscape version 4.0 to 4.74 has a security vulnerability that allows attackers to remotely access local files by using JAVA virtual machines. More information about this vulnerability can be accessed by the Brown orifice,the new multi-pla
RecentlySitu zhengmei-Determination of the world's shortest IEThe article shows that only 6 bytes of IE and non-ie methods are judged. ItsCodeAs follows:
In fact, there are many judgment methods, mostly based on the characteristics of the browser.
For example, the method for database prototype is :!! (Window. attachevent navigator. useragent. indexof ('Opera ') ===- 1 ). It is determined by IE's support for window. attachevent to add listeni
number1.Math. Random () random function, which can only be a number between 0 and 1. To get another number, it can be * 10 and then rounded up.Math. Round (number) the integer nearest to number (rounding the fractional part)Math. Sin (number) number is sine, And the return value ranges from-1 to 1.Math. SQRT (number) number (must be greater than or equal to 0) Square RootMath. Tan (number) number (expressed in radians) tangentMath. tostring (number) and number are equivalent stringsParseint (st
With the popularity of Windows 7, the team of IE 8 browsers has gradually grown. however, we suddenly found that many web pages have problems. Even worse, our website editor is useless, and all the buttons are useless, even other browsers.
This is written in a buddy's post. Open the editor. js file under include and there is such a code segment:If (element. yuseronclick ){Eval (element. yuseronclick + "anonymous ()");}OrIf (element. yuseronclick) eval (element. yuseronclick + "anonymous ()");OrI
Function browserinfo (){
VaR browser_name = navigator. appname;
VaR browser_version = parsefloat (navigator. appversion );
VaR browser_agent = navigator. useragent;
VaR actual_version, actual_name;
VaR is_ie = (browser_name = "Microsoft Internet Explorer ");
VaR is_nn = (browser_name = "Netscape ");
If (is_nn ){
// Upper 5.0 need to be process, lower 5.0 retur
Browser Detection Method
1. Object Feature Detection: a common method for determining browser capabilities. This method can be used if you are more concerned with the browser's capabilities and do not care about its actual identity. The common native Ajax write method uses this method to create XMLHttpRequest:Copy codeThe Code is as follows: IXHR: function (){If (window. ActiveXObject ){XHR = new ActiveXObject ('Microsoft. xmlhttp ');} Else if (window. XMLHttpRequest ){XHR = new XMLHttpRequest
Browser Detection Method1. Object Feature Detection: a common method for determining browser capabilities. This method can be used if you are more concerned with the browser's capabilities and do not care about its actual identity. The common native Ajax write method uses this method to create XMLHttpRequest:Copy codeThe Code is as follows:IXHR: function (){If (window. ActiveXObject ){XHR = new ActiveXObject ('Microsoft. xmlhttp ');} Else if (window. XMLHttpRequest ){XHR = new XMLHttpRequest ();
vertical scroll bar, it is related to the width occupied by the content. The specific calculation is not clear yet.ScrollWidthSimilar to the aboveThe length of the scrollLeft horizontal scroll bar.Length of scrollTop vertical scroll bar rolled over
A js and css problem. Get the distance between the div of absolute and the body, that is, left and right.
To solve this problem, first confirm who your offsetParent is. If its parent level is set relative position, absolute, and fixed, then offsetPar
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.