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Plotting two variables as lines using ggplot2 on the same graph
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edited Jan 29 '19 at 1:26
Nakx
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Proxy with express.js
... use http.request to create a similar request to the remote API and return its response.
Something like this:
const http = require('http');
// or use import http from 'http';
/* your app config here */
app.post('/api/BLABLA', (oreq, ores) => {
const options = {
// host to forward to
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What is the Swift equivalent of isEqualToString in Objective-C?
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With Swift you don't need anymore to check the equality with isEqualToString
You can now use ==
Example:
let x = "hello"
let y = "hello"
let isEqual = (x == y)
now isEqual is true.
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Print PHP Call Stack
...y will apparently not flush the I/O buffer, but you can do that yourself, with flush and/or ob_flush.
(see the manual page of the first one to find out why the "and/or" ;-) )
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Simple explanation of clojure protocols
...ession Problem in an efficient manner.
So, what's the Expression Problem? It refers to the basic problem of extensibility: our programs manipulate data types using operations. As our programs evolve, we need to extend them with new data types and new operations. And particularly, we want to be able...
How can I list the contents of a directory in Python?
...d to Python. My preferred way to list a directory now usually involves the iterdir method on Path objects:
from pathlib import Path
print(*Path("/home/username/www/").iterdir(), sep="\n")
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Converting Integer to Long
I need to get the value of a field using reflection. It so happens that I am not always sure what the datatype of the field is. For that, and to avoid some code duplication I have created the following method:
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ActionBarCompat: java.lang.IllegalStateException: You need to use a Theme.AppCompat
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If you are extending ActionBarActivity in your MainActivity, you will have to change the parent theme in values-v11 also.
So the style.xml in values-v11 will be -
<!-- res/values-v11/themes.xml -->
<?xml version="1.0" encoding="utf-8"?>
<re...
Finding the author of a line of code in Mercurial
...On the command-line, you'd want to use hg annotate -u (-u can be combined with -n to get the local revision number, which might come in useful). Check hg help anno for more options.
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Is it possible to have empty RequestParam values use the defaultValue?
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You could change the @RequestParam type to an Integer and make it not required. This would allow your request to succeed, but it would then be null. You could explicitly set it to your default value in the controller method:
@RequestMapping(value = "/test", method = RequestMethod.POST)
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