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What's the difference between `1L` and `1`?
...re adding 1 to an integer vector turns it into a double vector:
x <- 1:100
typeof(x) # integer
y <- x+1
typeof(y) # double, twice the memory size
object.size(y) # 840 bytes (on win64)
z <- x+1L
typeof(z) # still integer
object.size(z) # 440 bytes (on win64)
...but also note that work...
Difference between declaring variables before or in loop?
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Daniel EarwickerDaniel Earwicker
106k3434 gold badges190190 silver badges271271 bronze badges
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IntelliJ 13 - Add Navigate Back/Forward to toolbar?
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it is just so popular to hide features since at least 10 years. It might have started with Windows 7, hiding the QuickLaunch toolbar.
– schlingel
Nov 8 '18 at 8:00
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What does “#define _GNU_SOURCE” imply?
...ith
the value 200809L (200112L in glibc versions before 2.10;
199506L in glibc versions before 2.5; 199309L in glibc ver‐
sions before 2.1) and _XOPEN_SOURCE with the value 700 (600
in glibc versions before 2.10; 500 in glibc vers...
Difference between Key, Primary Key, Unique Key and Index in MySQL
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|
edited Oct 2 '10 at 8:21
answered Oct 2 '10 at 8:13
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Use of an exclamation mark in a Git commit message via the command line
...owLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\...
LINQ to SQL - Left Outer Join with multiple join conditions
...in fg.Where(f => f.otherid == 17).DefaultIfEmpty()
where p.companyid == 100
select f.value
Or you could use a subquery:
from p in context.Periods
join f in context.Facts on p.id equals f.periodid into fg
from fgi in (from f in fg
where f.otherid == 17
select f).Defaul...
Create JSON-object the correct way
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answered Jul 19 '10 at 13:21
CristianCristian
188k5858 gold badges348348 silver badges260260 bronze badges
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How can I check file size in Python?
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answered Jan 20 '10 at 19:01
Adam RosenfieldAdam Rosenfield
346k9090 gold badges477477 silver badges564564 bronze badges
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Is there an eval() function in Java? [duplicate]
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answered Apr 9 '10 at 4:16
Jeff StoreyJeff Storey
52k6565 gold badges217217 silver badges383383 bronze badges
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