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Get the index of the object inside an array, matching a condition
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780
As of 2016, you're supposed to use Array.findIndex (an ES2015/ES6 standard) for this:
a = [...
Why is Scala's immutable Set not covariant in its type?
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answered Mar 24 '09 at 18:34
Daniel SpiewakDaniel Spiewak
51.1k1111 gold badges101101 silver badges120120 bronze badges
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What is the fundamental difference between WebSockets and pure TCP?
...connections. Usually they will have only a few standard ones such as port 80 for HTTP or 443 for HTTPS. So, to communicate with the server you are obliged to connect using one of those ports.
Given that these are standard ports for web servers that generally speak HTTP, you're therefore obliged to ...
How do I call setattr() on the current module?
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edited May 29 '10 at 16:03
answered May 29 '10 at 2:11
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Getting vertical gridlines to appear in line plot in matplotlib
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102
You may need to give boolean arg in your calls, e.g. use ax.yaxis.grid(True) instead of ax.yaxi...
What is @RenderSection in asp.net MVC
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answered Apr 27 '14 at 19:03
cgijbelscgijbels
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SignalR: Why choose Hub vs. Persistent Connection?
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edited Jul 20 '17 at 12:13
ColinE
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Which is better: … or …
...a type attribute at all? If you're using HTML5, no. Otherwise, yes. HTML 4.01 and XHTML 1.0 specifies the type attribute as required while HTML5 has it as optional, defaulting to text/javascript. HTML5 is now widely implemented, so if you use the HTML5 doctype, <script>...</script> is va...
How to vertically align into the center of the content of a div with defined width/height?
...our parent div, you can use of the following options:
.area{
height: 100px;
width: 100px;
background: red;
margin:10px;
text-align: center;
display:table-cell;
vertical-align:middle;
}
Live DEMO
Version 2: Parent div with display block and content display table-c...
Replacing Pandas or Numpy Nan with a None to use with MysqlDB
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203
@bogatron has it right, you can use where, it's worth noting that you can do this natively in p...