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Easy way to test a URL for 404 in PHP?
...odified version of code from "stuart at sixletterwords dot com", at 14-Sep-2005 04:52. This version tries to emulate get_headers() function at PHP4. I think it works fairly well, and is simple. It is not the best emulation available, but it works.
Features:
- supports (and requires) full URLs.
- su...
How to manage a redirect request after a jQuery Ajax call
...ed JSON. In this case, all responses to AJAX requests have the status code 200 and the body of the response contains a JSON object that is constructed on the server. The JavaScript on the client can then use the JSON object to decide what it needs to do.
I had a similar problem to yours. I perform ...
Automatic Retina images for web sites
...'s say your image is 400px wide and tall - just specify the image width as 200px to make it look sharp like this:
<img src="img.jpg" width="200px" height="200px" />
If your image is photographic, you can probably increase the JPG compression on it without making it look worse, because the J...
PHP - how to best determine if the current invocation is from CLI or web server?
...sponse_code() !== false ? 'web' : 'cli') . "\n"; } t(); http_response_code(200); t(); http_response_code(false); t();. So if http_response_code()===false then it`s a safe bet to assume CLI, but if not you need to check also other metrics.
– Sebastian B.
May 28 ...
Open popup and refresh parent page on close popup
...nd do it like this:
var win = window.open('foo.html', 'windowName',"width=200,height=200,scrollbars=no");
var timer = setInterval(function() {
if(win.closed) {
clearInterval(timer);
alert('closed');
}
}, 1000);
See this working Fiddle example!
...
Asynchronous Requests with Python requests
...s)
send the stack
grequests.map(rs)
result looks like
[<Response [200]>, <Response [200]>, <Response [200]>, <Response [200]>, <Response [200]>]
grequests don't seem to set a limitation for concurrent requests, ie when multiple requests are sent to the same serv...
How to make an empty div take space
...n even if the other columns are empty.
Example:
.left-column
{
width: 200px;
min-height: 1px;
float: left;
}
.right-column
{
width: 500px;
min-height: 1px;
float: left;
}
share
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...
How can I set multiple CSS styles in JavaScript?
...ing Object.assign:
Object.assign(yourelement.style,{fontsize:"12px",left:"200px",top:"100px"});
This also gives you ability to merge styles, instead of rewriting the CSS style.
You can also make a shortcut function:
const setStylesOnElement = function(styles, element){
Object.assign(element...
Loading basic HTML in Node.js
....createServer(function(request, response) {
response.writeHeader(200, {"Content-Type": "text/html"});
response.write(html);
response.end();
}).listen(8000);
});
The basic concept is just raw file reading and dumping the contents. Still open to cleaner options, t...
How can I create a simple message box in Python?
...t *
import tkMessageBox
window = Tk()
window.wm_withdraw()
#message at x:200,y:200
window.geometry("1x1+200+200")#remember its .geometry("WidthxHeight(+or-)X(+or-)Y")
tkMessageBox.showerror(title="error",message="Error Message",parent=window)
#centre screen message
window.geometry("1x1+"+str(wind...