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How to trim leading and trailing white spaces of a string?
...alid json string, if any.
func (s *ScrubString) UnmarshalJSON(data []byte) error {
ns := string(data)
// Make sure we don't have a blank string of "\"\"".
if len(ns) > 2 && ns[0] != '"' && ns[len(ns)] != '"' {
*s = ""
return nil
}
// Remove the ...
Why is “if not someobj:” better than “if someobj == None:” in Python?
...)'. Anyway, modern versions of python have a proper ternary operator. This error-prone hack should be banished.
– ddaa
Sep 19 '08 at 11:28
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Validate uniqueness of multiple columns
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You probably want to add a custom error msg like , :message => ' has already this friend.'
– laffuste
May 15 '14 at 9:34
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Removing a model in rails (reverse of “rails g model Title…”)
... rails db:rollback, Rails will throw a ActiveRecord::IrreversibleMigration error.
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Java unchecked: unchecked generic array creation for varargs parameter
...how unchecked warnings in my Java code, but I am failing to understand the error on the following lines:
2 Answers
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What's the best way to check if a file exists in C?
...memory leak since 'file' == NULL
//fclose(file) would cause an error
}
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A Java collection of value pairs? (tuples?)
...if I understand correctly, rolling out a simple pair class yields a syntax error, a subpar hashCode method, null pointer exceptions, no compareTo method, design questions ... and people still advocate rolling out this class while it exists in Apache commons. Please, just copy the code if you don't w...
How to change the decimal separator of DecimalFormat from comma to dot/point?
... part of my message that made no sense since it proved to be due the human error (forgot to commit data and was looking at the wrong thing).
Same as BigDecimal can be said for any Java .toString() functions. I guess that is good in some ways. Serialization for example or debugging. There is an uniq...
What's the difference between @Secured and @PreAuthorize in spring security 3?
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As you reverted my edit, are you saying that there is no error in this "hasRole('ADMIN OR hasRole('USER')"?
– rigon
Oct 4 '19 at 16:32
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How can I create a “Please Wait, Loading…” animation using jQuery?
... will only hide the loading image on a successful AJAX call. To handle the error states, you'll need to look into $.ajax, which is more complex than $.load, $.get and the like, but a lot more flexible too.
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