大约有 42,000 项符合查询结果（耗时：0.0626秒） [XML]
Check if Internet Connection Exists with Javascript? [duplicate]
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If you wanted a more robust solution you could try:
var online = navigator.onLine;
Read more about the W3C's spec on offline web apps, however be aware that this will work best in modern web browsers, doing so with older web browsers may not work as expected, or at all.
Alternatively, an XHR ...
Emacs on Mac OS X Leopard key bindings
I'm a Mac user and I've decided to learn Emacs. I've read that to reduce hand strain and improve accuracy the CTRL and CAPS LOCK keys should be swapped. How do I do this in Leopard?
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Practical non-image based CAPTCHA approaches?
It looks like we'll be adding CAPTCHA support to Stack Overflow. This is necessary to prevent bots, spammers, and other malicious scripted activity. We only want human beings to post or edit things here!
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Redirecting to a certain route based on condition
...king. Perhaps this will be useful for someone else?
I added the following to my module configuration:
angular.module(...)
.config( ['$routeProvider', function($routeProvider) {...}] )
.run( function($rootScope, $location) {
// register listener to watch route changes
$rootScope.$on( "$r...
Prevent any form of page refresh using jQuery/Javascript
Once the user is on my page, I do not want him to refresh the page.
7 Answers
7
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Encrypt Password in Configuration Files? [closed]
...ram that reads server information from a configuration file and would like to encrypt the password in that configuration that can be read by my program and decrypted.
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How to build jars from IntelliJ properly?
...e a project that contains a single module, and some dependencies.
I'd like to create a jar, in a separate directory, that contains the compiled module. In addition, I'd like to have the dependencies present beside my module.
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What's a concise way to check that environment variables are set in a Unix shell script?
I've got a few Unix shell scripts where I need to check that certain environment variables are set before I start doing stuff, so I do this sort of thing:
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Escape double quotes in parameter
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I cannot quickly reproduce the symptoms: if I try myscript '"test"' with a batch file myscript.bat containing just @echo.%1 or even @echo.%~1, I get all quotes: '"test"'
Perhaps you can try the escape character ^ like this: myscript '^"test^"'?
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What's is the difference between include and extend in use case diagram?
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Extend is used when a use case adds steps to another first-class use case.
For example, imagine "Withdraw Cash" is a use case of an Automated Teller Machine (ATM). "Assess Fee" would extend Withdraw Cash and describe the conditional "extension point" that is inst...