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How to check if object (variable) is defined in R?
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You want exists():
R> exists("somethingUnknown")
[1] FALSE
R> somethingUnknown <- 42
R> exists("somethingUnknown")
[1] TRUE
R>
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What is the use of style=“clear:both”?
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edited Jul 14 '09 at 20:46
answered Jun 18 '09 at 11:23
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How to print a list of symbols exported from a dynamic library
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153
man 1 nm
https://web.archive.org/web/20160316222941/https://developer.apple.com/library/mac/d...
string c_str() vs. data()
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106
The documentation is correct. Use c_str() if you want a null terminated string.
If the implem...
What is a “Stub”?
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116
Martin Fowler wrote an excellent article on this subject. From that article:
Meszaros uses...
Adding Http Headers to HttpClient
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edited Nov 7 '19 at 10:17
Massimiliano Kraus
3,06344 gold badges1919 silver badges3636 bronze badges
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git: How to diff changed files versus previous versions after a pull?
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159
There are all kinds of wonderful ways to specify commits - see the specifying revisions sectio...
git push fails: RPC failed; result=22, HTTP code = 411
...ay get an error message such as error: RPC failed; result=22, HTTP code = 411. This is caused by a Git configuration default which limits certain HTTP operations to 1 megabyte.
To change this limit run within your local repository
git config http.postBuffer *bytes*
where bytes is the maximum num...
What is the difference between a cer, pvk, and pfx file?
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151
Windows uses .cer extension for an X.509 certificate. These can be in "binary" (ASN.1 DER), or...
How to host a Node.Js application in shared hosting [closed]
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160
You can run node.js server on a typical shared hosting with Linux, Apache and PHP (LAMP). I h...