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How can a time function exist in functional programming?
... the new action. For instance, let's pretend there is a function now :: IO String, which returns a String representing the current time. We can chain it with the function putStrLn to print it out:
now >>= putStrLn
Or written in do-Notation, which is more familiar to an imperative programmer...
Spring CrudRepository findByInventoryIds(List inventoryIdList) - equivalent to IN clause
...); I get the error: Caused by: java.lang.NumberFormatException: For input string: "(1, 2)"
– user64141
Feb 14 '16 at 17:04
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.NET unique object identifier
...he object. I don't know of any way of converting this into anything like a string etc. The value of the reference will change during compaction (as you've seen), but every previous value A will be changed to value B, so as far as safe code is concerned it's still a unique ID.
If the objects involve...
In a storyboard, how do I make a custom cell for use with multiple controllers?
...lls out of a storyboard, here's what happens:
Each prototype cell is actually its own embedded mini-nib. So when the table view controller is loading up, it runs through each of the prototype cell's nibs and calls -[UITableView registerNib:forCellReuseIdentifier:].
The table view asks the controll...
Get Value of a Edit Text field
...ew view)
{
Log.v("EditText", mEdit.getText().toString());
}
});
}
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Check if bash variable equals 0 [duplicate]
...an or equal to NUM2.
For example
if [[ $age > 21 ]] # bad, > is a string comparison operator
if [ $age > 21 ] # bad, > is a redirection operator
if [[ $age -gt 21 ]] # okay, but fails if $age is not numeric
if (( $age > 21 )) # best, $ on age is optional
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server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
...b certificate used for your gitLab server, and add it to your </git_installation_folder>/bin/curl-ca-bundle.crt.
To check if at least the clone works without checking said certificate, you can set:
export GIT_SSL_NO_VERIFY=1
#or
git config --global http.sslverify false
But that would be fo...
In Node.js, how do I turn a string to a json? [duplicate]
For example, a HTTP REST API just returned me a JSON, but of course it's a string right now. How can I turn it into a JSON?
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How to extract text from a string using sed?
My example string is as follows:
5 Answers
5
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How can I have grep not print out 'No such file or directory' errors?
...ry creating 2 files in a dir, 'aaa.txt' and 'a b.txt', both containing the string 'some text'. The command /bin/ls -1 | xargs grep 'some text' will give you "no such file or directory" because it breaks up 'a b.txt' into 2 args. If you suppress, you won't notice you missed a file.
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