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How do I fix “for loop initial declaration used outside C99 mode” GCC error?
...ble gcc extensions depends on what you're doing. Disabling them is helpful if your goal is to write code that's portable to compilers other than gcc.
– Keith Thompson
Sep 12 '13 at 23:40
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Breaking up long strings on multiple lines in Ruby without stripping newlines
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Three years later, there is now a solution in Ruby 2.3: The squiggly heredoc.
class Subscription
def warning_message
<<~HEREDOC
Subscription expiring soon!
Your free trial will expire in #{days_until_expiration} days.
Plea...
How to get the next auto-increment id in mysql
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If rows are deleted in the table the max will be wrong
– peterchaula
Feb 16 '17 at 9:43
1
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Find the index of a dict within a list, by matching the dict's value
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tom_index = next((index for (index, d) in enumerate(lst) if d["name"] == "Tom"), None)
# 1
If you need to fetch repeatedly from name, you should index them by name (using a dictionary), this way get operations would be O(1) time. An idea:
def build_dict(seq, key):
return dic...
Automate ssh-keygen -t rsa so it does not ask for a passphrase
...that the space separating the option and the empty passphrase -N '' is significant. When I added the space it succeeded!
– GH05T
Nov 6 '18 at 7:11
add a comment
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How to find the type of an object in Go?
..... etc
default:
return "unknown"
}
}
Every method has a different best use case:
string formatting - short and low footprint (not necessary to import reflect package)
reflect package - when need more details about the type we have access to the full reflection capabilities
type a...
Is it possible to set the equivalent of a src attribute of an img tag in CSS?
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@EricG, different applications have different requirements. If it doesn't suit your requirements, don't use it. If it does, use it.
– Pacerier
Feb 22 '13 at 12:17
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adding multiple entries to a HashMap at once in one statement
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@TimoTürschmann Seems that if I ever needed static initialization of a map like this, that it would also be static, eliminating the every time you use it performance penalty - you'd have that penalty once. I can't see any other time that one would want...
What is the difference between SAX and DOM?
...ks @spartkymat. But in case of SAX event based will SAX parser be able to know particular child node is child of particular parent? Or simply it will parse? for example. i have one <company> and child is <employee>. So in this case those company and employee will just be parsed or will i...
How do I encode and decode a base64 string?
... otherwise: the parameter name given in the exception might not be correct if left unchecked.
– tne
Aug 19 '15 at 8:57
6
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