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C# Java HashMap equivalent
...g to avoid this:
MyObject value = null;
if (!myDictionary.TryGetValue(key, out value)) { /* key doesn't exist */ }
Dictionary's has a ContainsKey method that can help deal with the previous two problems.
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What's the difference between “Write-Host”, “Write-Output”, or “[console]::WriteLine”?
There are a number of different ways to output messages. What is the effective difference between outputting something via Write-Host , Write-Output , or [console]::WriteLine ?
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Write a program to find 100 largest numbers out of an array of 1 billion numbers
...n interview where I was asked "write a program to find 100 largest numbers out of an array of 1 billion numbers."
33 Answer...
Trimming a huge (3.5 GB) csv file to read into R
...de creates csv with selected years.
file_in <- file("in.csv","r")
file_out <- file("out.csv","a")
x <- readLines(file_in, n=1)
writeLines(x, file_out) # copy headers
B <- 300000 # depends how large is one pack
while(length(x)) {
ind <- grep("^[^;]*;[^;]*; 20(09|10)", x)
if (...
Bootstrap 3 and Youtube in Modal
I'm trying to use the Modal feature from Bootstrap 3 to show my Youtube video. It works, but I can't click on any buttons in the Youtube video.
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How does a public key verify a signature?
...ting):
openssl rsautl -encrypt -inkey public.pem -pubin -in message.txt -out message.ssl
openssl rsautl -decrypt -inkey private.pem -in message.ssl -out message.txt
Private key encrypts, public key decrypts (signing):
openssl rsautl -sign -inkey private.pem -in message.txt -out ...
SQL - The conversion of a varchar data type to a datetime data type resulted in an out-of-range valu
...e conversion of a varchar data type to a datetime data type resulted in an out-of-range value".
The problem was the default language of the db user.
To check or change it in SSMS go to Security -> Logins and right-click the username of the user that runs the queries. Select properties -> g...
Finding out whether a string is numeric or not
How can we check if a string is made up of numbers only. I am taking out a substring from a string and want to check if it is a numeric substring or not.
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Can I comment out a line in a .git/config file?
...itory configuration file that I would like to 'turn on and off' easily without having to remember and type again the whole configuration every time I'm behind or free from this proxied connection.
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How to disable the application pool idle time-out in IIS7?
Will it be disabled if I set the idle time-out to 0?
3 Answers
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