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When do you use map vs flatMap in RxJava?
...part-1/
A good source about how to manage errors with RX can be found at: https://gist.github.com/daschl/db9fcc9d2b932115b679
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Android : Check whether the phone is dual SIM
.../manifest>
To get network operator you can check mcc and mnc codes:
https://en.wikipedia.org/wiki/Mobile_country_code (general information).
https://clients.txtnation.com/hc/en-us/articles/218719768-MCCMNC-mobile-country-code-and-mobile-network-code-list- (quite full and quite latest list of ...
.rar, .zip files MIME Type
....
While the former matching is correct, for the latter IANA reports here https://www.iana.org/assignments/media-types/application/vnd.rar that for rar application/x-rar-compressed is a deprecated alias name and instead application/vnd.rar is the official one.
So, right Media Types from IANA in 202...
How do I install Python OpenCV through Conda?
...
This worked for me (on Ubuntu and conda 3.18.3):
conda install --channel https://conda.anaconda.org/menpo opencv3
The command above was what was shown to me when I ran the following:
anaconda show menpo/opencv3
This was the output:
To install this package with conda run:
conda install -...
Bootstrap combining rows (rowspan)
...
div {
height:50px;
}
.short-div {
height:25px;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />
<div class="container">
<h1>Responsive Bootstrap</h1>
<div class="row">
<div class="col-lg...
How can I keep Bootstrap popovers alive while being hovered?
...cript>
<script data-require="bootstrap@*" data-semver="3.2.0" src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.js"></script>
<link rel="stylesheet" href="style.css" />
</head>
<body>
<h2 class='text-primary'>Another Great "KISS" Bootst...
Scala: Abstract types vs generics
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
What is console.log?
...ebug is much better; use Firebug)
Safari and Chrome
Basically the same.
https://developers.google.com/chrome-developer-tools/docs/overview
https://developer.apple.com/technologies/safari/developer-tools.html
Internet Explorer
Don't forget you can use compatibility modes to debug IE7 and IE8 i...
Reading a file line by line in Go
... which demonstrates each solution, it can be run via go run main.go, or at https://play.golang.org/p/RAW3sGblbas
package main
import (
"bufio"
"bytes"
"fmt"
"io"
"os"
)
func readFileWithReadString(fn string) (err error) {
fmt.Println("readFileWithReadString")
file, err...
Error: could not find function … in R
...een added to R on that function's help page (e.g. ?hasName). E.g. neither https://www.rdocumentation.org/packages/utils/versions/3.4.3/topics/hasName nor https://stat.ethz.ch/R-manual/R-devel/library/utils/html/hasName.html say "introduced in R 3.4.0" I ended up figuring it out by browsing through...