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Is Python interpreted, or compiled, or both?
...tion to native machine code. A compiler is, more generally, a program that converts a program in one programming language into a program in another programming language (arguably, you can even have a compiler with the same input and output language if significant transformations are applied). And JI...
Breaking loop when “warnings()” appear in R
... loop. Nicely, R will also report to you that these particular errors were converted from warnings.
j <- function() {
for (i in 1:3) {
cat(i, "\n")
as.numeric(c("1", "NA"))
}}
# warn = 0 (default) -- warnings as warnings!
j()
# 1
# 2
# 3
# Warning messages:
# 1: NAs intro...
What does .SD stand for in data.table in R
...
Edit:
Given how well-received this answer was, I've converted it into a package vignette now available here
Given how often this comes up, I think this warrants a bit more exposition, beyond the helpful answer given by Josh O'Brien above.
In addition to the Subset of the D...
RGB to hex and hex to RGB
How to convert colors in RGB format to hex format and vice versa?
50 Answers
50
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What is the purpose of a plus symbol before a variable?
...ein from the MDN link in the answer: "Although unary negation (-) also can convert non-numbers, unary plus is the fastest and preferred way of converting something into a number, because it does not perform any other operations on the number." (just for an "official" answer)
– ...
How do you log content of a JSON object in Node.js?
...y this one:
console.log("Session: %j", session);
If the object could be converted into JSON, that will work.
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Why does ('0' ? 'a' : 'b') behave different than ('0' == true ? 'a' : 'b') [duplicate]
... return the result of the comparison x == ToNumber(y).
When booleans are converted to numbers, the following conversion takes place:
Boolean: The result is 1 if the argument is true. The result is +0 if the argument is false.
Now we have
'0' == 1
which matches the condition in step 5:
...
Assembly code vs Machine code vs Object code?
...tions. Unlike machine code, the CPU does not understand assembly code. You convert assembly code to machine code with the use of an assembler or a compiler, though we usually think of compilers in association with high-level programming language that are abstracted further from the CPU instructions....
Simplest SOAP example
...ross all browsers:
https://github.com/ilinsky/xmlhttprequest
This JS code converts XML into easy to use JavaScript objects:
http://www.terracoder.com/index.php/xml-objectifier
The JS code above can be included in the page to meet your no external library requirement.
var symbol = "MSFT";
var xml...
Creating a DateTime in a specific Time Zone in c#
...nd(dateTime, DateTimeKind.Unspecified);
utcDateTime = TimeZoneInfo.ConvertTimeToUtc(dateTimeUnspec, timeZone);
this.timeZone = timeZone;
}
public DateTime UniversalTime { get { return utcDateTime; } }
public TimeZoneInfo TimeZone { get { return timeZone; } }
publi...