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What are Flask Blueprints, exactly?
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A blueprint is a template for generating a "section" of a web application. You can think of it as a mold:
You can take the blueprint and apply it to your application in several places. Each time you apply it the blueprint will create a new version of its structure in the plaster...
How do I force Postgres to use a particular index?
...why PostgreSQL chooses bad (in your opinion) plan.
There are tools on the web that help with reading explain analyze output - one of them is explain.depesz.com - written by me.
Another option is to join #postgresql channel on freenode irc network, and talking to guys there to help you out - as opt...
How to Create Grid/Tile View?
...80px) {
.masonry-container {
-moz-column-count: 3;
-webkit-column-count: 3;
column-count: 3;
}
}
@media only screen and (min-width: 768px) {
.masonry-container {
-moz-column-count: 4;
-webkit-column-count: 4;
column-count: 4;
...
Best Practice: Access form elements by HTML id or name attribute?
... caller getter any namedItem(in DOMString name);. More at whatwg.org/specs/web-apps/current-work/multipage/…
– Anurag
Mar 13 '10 at 3:49
1
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Finding all cycles in a directed graph
...go that these algorithms are not readily available in textbooks and on the web. So I did some research and implemented 4 such algorithms and 1 algorithm for cycles in undirected graphs in an open source Java library here : http://code.google.com/p/niographs/ .
BTW, since I mentioned undirected grap...
Read stream twice
... a word of warning when using ImageIO#read(java.net.URL): some webservers and CDNs might reject bare calls (i.e. without a User Agent that makes the server believe the call comes from a web browser) made by ImageIO#read. In that case, using URLConnection.openConnection() setting the user...
Using CSS how to change only the 2nd column of a table
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on this web http://quirksmode.org/css/css2/columns.html i found that easy way
<table>
<col style="background-color: #6374AB; color: #ffffff" />
<col span="2" style="background-color: #07B133; color: #ffffff;" />
&l...
iOS: Compare two dates
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After searching stackoverflow and the web a lot, I've got to conclution that the best way of doing it is like this:
- (BOOL)isEndDateIsSmallerThanCurrent:(NSDate *)checkEndDate
{
NSDate* enddate = checkEndDate;
NSDate* currentdate = [NSDate date];
NS...
JavaScript - Get Portion of URL Path
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There is a useful Web API method called URL
const url = new URL('http://www.somedomain.com/account/search?filter=a#top');
console.log(url.pathname.split('/'));
const params = new URLSearchParams(url.search)
console.log(params.get("filt...
How is mime type of an uploaded file determined by browser?
I have a web app where the user needs to upload a .zip file. On the server-side, I am checking the mime type of the uploaded file, to make sure it is application/x-zip-compressed or application/zip .
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