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How do I check if a variable exists?
I want to check if a variable exists. Now I'm doing something like this:
11 Answers
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How do I git rebase the first commit?
I used git init to create a fresh repo, then made three commits. Now I want to rebase to go back and amend my first commit, but if I do git rebase -i HEAD~3 it complains! If I try the same with HEAD~2 then it kinda works but only lets me rearrange the last two commits.
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How to debug a bash script? [closed]
... its wrong, installs bashdb, etc. (Answer has been edited with this info now)
– Stabledog
Feb 26 '14 at 15:14
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How to use enums in C++
...Days { Saturday, Sunday, Monday, Tuesday, Wednesday, Thursday, Friday };
Now, Saturday, Sunday, etc. can be used as top-level bare constants,and Days can be used as a type:
Days day = Saturday; // Days.Saturday is an error
And similarly later, to test:
if (day == Saturday)
// ...
These...
Xcode 6 iPhone Simulator Application Support location
...licLinkAtPath:aliasPath withDestinationPath:DOCS_DIR error:nil]; #endif Now I've got a simlink that works, even though iOS8 + XCode6 changes my App's Data GUID everytime I build.
– seabass
Sep 22 '14 at 17:56
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File name? Path name? Base name? Naming standard for pieces of a path
...onvention will be in vain. Here are my proposals, based on existing, well-known programs:
A) C:\users\OddThinking\Documents\My Source\Widget\foo.src
Vim calls it file root (:help filename-modifiers)
B) C:\users\OddThinking\Documents\My Source\Widget\foo.src
file name or base name
C) C:\...
How to remove a web site from google analytics
... edited Dec 25 '15 at 10:24
JinSnow
1,10344 gold badges2121 silver badges4141 bronze badges
answered Sep 11 '13 at 16:53
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Best JavaScript compressor [closed]
...tter than YUI on all scripts I tested it on, and it's safer than Closure (knows to deal with "eval" or "with").
Other than whitespace removal, UglifyJS also does the following:
changes local variable names (usually to single characters)
joins consecutive var declarations
avoids inserting any unne...
SSH Key - Still asking for password and passphrase
... UseKeychain yes
AddKeysToAgent yes
IdentityFile ~/.ssh/id_rsa
And now my password is remembered between restarts of my Mac!
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Message Queue vs. Web Services? [closed]
...gives a response to the call and the client fails, if the client didn't acknowledge the response the message is persisted.
You have contention, you can decide how many requests are handled by the server (call it worker instead).
You don't expect an immediate synchronous response, but you can impleme...