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Convert SVG to image (JPEG, PNG, etc.) in the browser
... This isn't strictly Javascript, but HTML5 as well. This will not work on IE8, or any other browser that does not support HTML5 Canvas.
– James
Jun 25 '12 at 18:31
16
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Detecting when a div's height changes using jQuery
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Use a resize sensor from the css-element-queries library:
https://github.com/marcj/css-element-queries
new ResizeSensor(jQuery('#myElement'), function() {
console.log('myelement has been resized');
});
It uses a event based approach and doesn't waste your cpu ti...
Does JavaScript have the interface type (such as Java's 'interface')?
... you use them. The syntax is kind of ugly, though. There's a slightly prettier way:
Object.prototype.can = function(methodName)
{
return ((typeof this[methodName]) == "function");
};
if (someObject.can("quack"))
{
someObject.quack();
}
This is standard JavaScript, so it should work in a...
Best approach to real time http streaming to HTML5 video client
... understand the best way to stream real time output of ffmpeg to a HTML5 client using node.js, as there are a number of variables at play and I don't have a lot of experience in this space, having spent many hours trying different combinations.
...
How to list the properties of a JavaScript object?
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In modern browsers (IE9+, FF4+, Chrome5+, Opera12+, Safari5+) you can use the built in Object.keys method:
var keys = Object.keys(myObject);
The above has a full polyfill but a simplified version is:
var getKeys = function(obj){
var keys ...
ZeroMQ的学习和研究（PHP代码实例） - C/C++ - 清泛网 - 专注C/C++及内核技术
...断，不会影响其他的节点继续的接受信息。
那么 ZMQ 是怎么实现断线重连后，继续发送信息呢 ？他会将断开的 Subscriber 应该接受到的信息发到内存中，等待他重新上线后，将缓存的信息，继续发送给他。当然，内存必然是有限...
Should I use px or rem value units in my CSS? [closed]
...ixel, because all widely available displays were around 96dpi.
Sizes specified in ems are relative to the parent element. This leads to the em's "compounding problem" where nested elements get progressively larger or smaller. For example:
body { font-size:20px; }
div { font-size:0.5em; }
Gives...
Cross Browser Flash Detection in Javascript
Does anyone have an example of script that can work reliably well across IE/Firefox to detect if the browser is capable of displaying embedded flash content. I say reliably because I know its not possible 100% of the time.
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How do I remove the border around a focused contenteditable pre?
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@Christoffer: outline will not work in IE7 or lower. In these browsers, you need to set the hideFocus property of the element to true, ie $('#myEl').get().hideFocus = true;
– Andy E
Feb 14 '10 at 12:04
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How do you post to an iframe?
...5, and it works in just about every browser since Netscape 3.
I have verified this behaviour as working with XHTML 1 Strict, XHTML 1 Transitional, HTML 4 Strict and in "quirks mode" with no DOCTYPE specified, and it works in all cases using Internet Explorer 7.0.5730.13. My test case consist of two...