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Reverse of JSON.stringify?
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JSON.stringify and JSON.parse are almost oposites, and "usually" this kind of thing will work:
var obj = ...;
var json = JSON.stringify(obj);
var obj2 = JSON.parse(json);
so that obj and obj2 are "the same".
However there are some limitations to be aware of.
Often these issues ...
Git copy file preserving history [duplicate]
...ile has been deleted and another one created, while "git diff -M" will actually detect the move and display the change accordingly (see "man git diff" for details).
So in git this is not a matter of how you commit your changes but how you look at the committed changes later.
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Command not found when using sudo
I have a script called foo.sh in my home folder.
9 Answers
9
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What Automatic Resource Management alternatives exist for Scala?
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For now Scala 2.13 has finally supported: try with resources by using Using :), Example:
val lines: Try[Seq[String]] =
Using(new BufferedReader(new FileReader("file.txt"))) { reader =>
Iterator.unfold(())(_ => Option(reader.readLine()).ma...
Grep and Sed Equivalent for XML Command Line Processing
When doing shell scripting, typically data will be in files of single line records like csv. It's really simple to handle this data with grep and sed . But I have to deal with XML often, so I'd really like a way to script access to that XML data via the command line. What are the best tools?
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How to use a wildcard in the classpath to add multiple jars? [duplicate]
...ldcard character *, which is considered equivalent to specifying a list of all the files in the directory with the extension .jar or .JAR. For example, the class path entry foo/* specifies all JAR files in the directory named foo. A classpath entry consisting simply of * expands to a list of all the...
How to create a jQuery plugin with methods?
... plugin that will provide additional functions/methods to the object that calls it. All the tutorials I read online (have been browsing for the past 2 hours) include, at the most, how to add options, but not additional functions.
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Passing a std::array of unknown size to a function
...way to make this work, as one would with plain C-style arrays?
No. You really cannot do that unless you make your function a function template (or use another sort of container, like an std::vector, as suggested in the comments to the question):
template<std::size_t SIZE>
void mulArray(std:...
Why can I change value of a constant in javascript
...se I thought that idea of the constant is that it can not be changed. Basically a programmer has trust that no matter what will happen, nothing can change the value inside of my constant.
– Salvador Dali
May 2 '14 at 20:39
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Useless use of cat?
...my rationale.
I had not meant to be defensive in responding to him. After all, in my younger years, I would have written the command as grep foo file.txt | cut ... | cut ... because whenever you do the frequent single greps you learn the placement of the file argument and it is ready knowledge that...