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How can I use a local image as the base image with a dockerfile?
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I don't know any more, I'm also now on 1.5
– Anentropic
Apr 21 '15 at 12:37
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Split string into array of character strings
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Convert array of strings into a string in Java
...bug-style" dump of an array:
String str = Arrays.toString(arr);
or, for more control (before Java 8):
StringBuilder builder = new StringBuilder();
for(String s : arr) {
builder.append(s);
}
String str = builder.toString();
(Java 8 and above):
String str = String.join(",", arr);
And if y...
How can Perl's print add a newline by default?
... use Modern::Perl to get this and other features.
See perldoc feature for more details.
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Stash changes while keeping the changes in the working directory in Git
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Bootstrapping still requires outside support
...extremely limited compiler in another language, then use that to compile a more complicated version, written in the new language. This second version can then be used to compile itself, and the next version. Each time it is compiled the last version is used.
This is the definition of bootstrapping:...
Java: Equivalent of Python's range(int, int)?
...It's nice but still another reminder of how clunky Java can be compared to more functional languages.
– z7sg Ѫ
Nov 27 '12 at 19:09
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Purpose of Django setting ‘SECRET_KEY’
...ngoproject.com/en/dev/ref/settings/#secret-key ), but I was looking for a more in-depth explanation of this, and why it is required.
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convert '1' to '0001' in JavaScript [duplicate]
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var ans = pad.substring(0, pad.length - str.length) + str
JavaScript is more forgiving than some languages if the second argument to substring is negative so it will "overflow correctly" (or incorrectly depending on how it's viewed):
That is, with the above:
1 -> "0001"
12345 -> "12345"
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