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Returning multiple objects in an R function [duplicate]
...is to return a list object. So if you have an integer foo and a vector of strings bar in your function, you could create a list that combines these items:
foo <- 12
bar <- c("a", "b", "e")
newList <- list("integer" = foo, "names" = bar)
Then return this list.
After calling your functi...
How do you parse and process HTML/XML in PHP?
...'d suggest using a lib that actually uses DOM/libxml underneath instead of string parsing.
FluentDom - Repo
FluentDOM provides a jQuery-like fluent XML interface for the DOMDocument in PHP. Selectors are written in XPath or CSS (using a CSS to XPath converter). Current versions extend the DOM i...
“TypeError: (Integer) is not JSON serializable” when serializing JSON in Python?
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It seems like there may be a issue to dump numpy.int64 into json string in Python 3 and the python team already have a conversation about it. More details can be found here.
There is a workaround provided by Serhiy Storchaka. It works very well so I paste it here:
def convert(o):
if ...
How to calculate dp from pixels in android programmatically [duplicate]
...();
getWindowManager().getDefaultDisplay().getMetrics(dm);
String str_ScreenSize = "The Android Screen is: "
+ dm.widthPixels
+ " x "
+ dm.heightPixels;
TextView mScreenSize = (TextView) findViewById(R.id.strScreenS...
SQL is null and = null [duplicate]
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@Sygmoral internally when you write in c# string a = null, it means that you are setting value null to variable a. But interpretation for programer is like you said: 'this variable has no value'. Further more in sql null can have multiple interpretations or three-val...
Escape text for HTML
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You can use actual html tags <xmp> and </xmp> to output the string as is to show all of the tags in between the xmp tags.
Or you can also use on the server Server.UrlEncode or HttpUtility.HtmlEncode.
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jQuery: serialize() form and other parameters
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serialize() effectively turns the form values into a valid querystring, as such you can simply append to the string:
$.ajax({
type : 'POST',
url : 'url',
data : $('#form').serialize() + "&par1=1&par2=2&par3=232"
}
...
How to make a transparent UIWebView
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this way works for 4.2.1 if you write these strings as code only. If you setup the same options in iterface builder than you will not get a transparent background
– Gargo
Sep 4 '12 at 6:18
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POST data with request module on Node.JS
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Remember to JSON.stringify your data if you are sending 'content-type': 'application/json'
– Derek Soike
Mar 25 '19 at 19:10
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Get HTML5 localStorage keys
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You can use the localStorage.key(index) function to return the string representation, where index is the nth object you want to retrieve.
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