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Best way to detect Mac OS X or Windows computers with JavaScript or jQuery
So I'm trying to move a "close" button to the left side when the user is on Mac and the right side when the user is on PC. Now I'm doing it by examining the user agent, but it can be too easily spoofed for reliable OS detection. Is there a surefire way to detect whether the OS on which the browser i...
Replace all spaces in a string with '+' [duplicate]
...d whitespace like /s would match. Particularly because he is doing this in JavaScript, and replacing the space character (but not other whitespace) with the + character is a standard way to encode URLs. This is probably why the regex solution that only replaces space characters has 10x the votes of...
Can media queries resize based on a div element instead of the screen?
...ding on the size of a certain div element on your page, you'll have to use JavaScript to observe changes in the size of that div element instead of media queries.
Alternatively, with more modern layout techniques such as flexbox and standards such as custom properties, you may not need media or elem...
Set value of textarea in jQuery
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textarea has a value (JavaScript) property just like a text input. It doesn't have an HTML value attribute, but that doesn't matter, because both val() and attr('value') write to the JavaScript value property. Note, attr() does not set HTML attrib...
What's the difference between Require.js and simply creating a element in the DOM? [closed]
...the nice article on ajaxian.com as to why use it:
RequireJS: Asynchronous JavaScript loading
some sort of #include/import/require
ability to load nested dependencies
ease of use for developer but then backed by an optimization tool that helps deployment
...
Why is Everyone Choosing JSON Over XML for jQuery? [closed]
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Basically because JSON is recognized natively by JavaScript, it's really lightweight, minimalistic and highly portable because it relies only on two fundamental structures:
A collection of name/value pairs. In various languages, this is realized as an object, record, stru...
Pretty print in MongoDB shell as default
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Now: how do you print it from external javascript loaded into Mongo? This will not work...
– Witold Kaczurba
May 13 '19 at 6:46
add a comme...
How do I cancel form submission in submit button onclick event?
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You can use his second suggestion. Inline javascript is the devil anyway.
– Stephen
Nov 19 '10 at 16:32
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Check if element is visible in DOM
...t the best solution was $(elem).is(':visible') - however, this is not pure javascript. it is jquery..
so I peeked at their source and found what I wanted
jQuery.expr.filters.visible = function( elem ) {
return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length );
};
T...
App Inventor 2 FTP 客户端拓展：FTP协议连接、上传、下载、创建、修改目录...
...：FTP协议连接、上传、下载、创建、修改目录等。
需要的权限点：READ_EXTERNAL_STORAGE 和 WRITE_EXTERNAL_STORAGE。
.aix 拓展下载：
cn.fun123.FTPClient.aix
属性
无
事件
Connected(result)
连接操作完...