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What are the typical reasons Javascript developed on Firefox fails on IE? [closed]
I developed some javascript enhanced pages that run fine on recent Firefox and Safari. I missed to check in Internet Explorer, and now I find the pages don't work on IE 6 and 7 (so far). The scripts are somehow not executed, the pages show as if javascript wasn't there, although some javascript is e...
Event listener for when element becomes visible?
...target').style.display;
if (previous_style != current_style) {
alert('style changed');
window.clearInterval(poll);
} else {
previous_style = current_style;
}
}, 100);
The DOM standard also specifies mutation events, but I've never had the chance to use them, and...
How can I check for “undefined” in JavaScript? [duplicate]
... use setTimeout because someone can
window.setTimeout = function () {
alert("Got you now!");
};
Bottom line, the "it can be redefined" argument to not use a raw === undefined is bogus.
(If you are still scared of undefined being redefined, why are you blindly integrating untested library co...
What does appending “?v=1” to CSS and Javascript URLs in link and script tags do?
...m/ ) and noticed the use of "?v=1" in URLs when referring to CSS and Javascript files.
8 Answers
...
Can I change all my http:// links to just //?
...ware of which one has the problem or how popular it is. For hosting a JavaScript file, that's not a big problem since RSS readers typically ignore JavaScript content anyway. However, it could be an issue if you're using these URLs for media like images inside content that needs to be syndicated vi...
How do I programmatically determine if there are uncommitted changes?
...n see "How to check if a command succeeded?" if you are using it in a bash script:
git diff-index --quiet HEAD -- || echo "untracked"; // do something about it
Note: as commented by Anthony Sottile
git diff-index HEAD ... will fail on a branch which has no commits (such as a newly initialized repo...
tcp加速技术解决方案 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...处理
还有诸如不容易调试， 代码比较复杂等等都会增加开发和维护难度。
使用DPDK
DPDK是intel推出的快速的数据包处理框架
通过内核uio机制，使数据包直接dma发送到用户态内存中
因为不走内核协议栈，需要结合其他用户...
How to sort an array in Bash
...nsure we don't cause trouble with anything that relies on IFS later in our script. (Otherwise we'd need to remember that we've switched things around--something that might be impractical for complex scripts.)
share
...
How to specify test directory for mocha?
...t put --recursive in the mocha command line, useful if you define the test script in your package.json
– unludo
Jan 8 '19 at 8:26
...
How to use timeit module
...)
y = range(100)
and times
sum(x)
min(y)
If you want to have longer scripts you might be tempted to move to timeit inside a Python script. I suggest avoiding that because the analysis and timing is simply better on the command line. Instead, I tend to make shell scripts:
SETUP="
... # lot...