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not None test in Python [duplicate]
...use there is one and only one instance of None present in a running Python script/program, is is the optimal test for this. As Johnsyweb points out, this is discussed in PEP 8 under "Programming Recommendations".
As for why this is preferred to
if not (val is None):
# ...
this is simply par...
ASP.NET MVC Custom Error Handling Application_Error Global.asax?
...uestContext.HttpContext.Request.IsAjaxRequest())
{
JavaScriptResult result = new JavaScriptResult()
{
Script = "try{history.pushState(null,null,window.location.href);}catch(err){}window.location.replace('" + UrlHelper.GenerateContentUrl(this.Url, conte...
Refresh a page using PHP
...een, like stock prices, but not use that information in a form or from javascript, perhaps use an iframe tag pointing to a page with just the information being updated, and with a delay appropriate to how current the information must be.
– Patanjali
Oct 23 '16 ...
How to increase maximum execution time in php [duplicate]
...'); // for infinite time of execution
Place this at the top of your PHP script and let your script loose!
Taken from Increase PHP Script Execution Time Limit Using ini_set()
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优化InnerHTML操作 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...head>
<title>test</title>
</head>
<body>
<div>
<p>data<p>
</div>
<script>
document.onmousedown = function() {
for (var i = 0; i < 10; i++) {
var p = document.createElement("p");
p.appendChild(document.createTextNode(Math.random()));
document.getElementsByT...
How to effectively work with multiple files in Vim
I've started using Vim to develop Perl scripts and am starting to find it very powerful.
28 Answers
...
How to show current time in JavaScript in the format HH:MM:SS?
...
}
startTime();
<div id="time"></div>
DEMO using javaScript only
Update
Updated Demo
(function () {
function checkTime(i) {
return (i < 10) ? "0" + i : i;
}
function startTime() {
var today = new Date(),
h = checkTime(today.getHour...
How to iterate for loop in reverse order in swift?
...hem. It's very convenient for interactive use, but terribly error prone in scripts, to the point where style guides recommend against using it.
– Davor Cubranic
Jan 21 '19 at 19:25
...
Changing Jenkins build number
...
If you have access to the script console (Manage Jenkins -> Script Console), then you can do this following:
Jenkins.instance.getItemByFullName("YourJobName").updateNextBuildNumber(45)
...
What will happen if I modify a Python script while it's running?
Imagine a python script that will take a long time to run, what will happen if I modify it while it's running? Will the result be different?
...