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Writing a compiler in its own language
... assembler. Eventually, you will come to the place where you have to parse strings, specifically escape sequences. You will write code to convert \n to the character with the decimal code 10 (and \r to 13, etc).
After that compiler is ready, you will start to reimplement it in C. This process is ca...
How do I convert a column of text URLs into active hyperlinks in Excel?
... 200 entries.
NOTE: This solution does not work if the cell A1 contains a string longer than 255 characters. It results in a #VALUE! error
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Understanding Spring @Autowired usage
...(Color color) {
this.color = color;
}
The @Resource (you can read some extra data about it in the first comment on this answer) spares you the use of two annotations and instead you only use one.
I'll just add two more comments:
Good practice would be to use @Inject instead of @Autowired beca...
C default arguments
... present depending on the required arguments, and printf(3) reads a format string that specifies how many arguments there will be. Both use varargs quite safely and effectively, and though you can certainly screw them up, printf() especially seems to be quite popular.
– Chris L...
How do I obtain crash-data from my Android application?
...onHandler {
private UncaughtExceptionHandler defaultUEH;
private String localPath;
private String url;
/*
* if any of the parameters is null, the respective functionality
* will not be used
*/
public CustomExceptionHandler(String localPath, String url) {
...
Cross field validation with Hibernate Validator (JSR 303)
... UserRegistrationForm {
@NotNull
@Size(min=8, max=25)
private String password;
@NotNull
@Size(min=8, max=25)
private String confirmPassword;
@NotNull
@Email
private String email;
@NotNull
@Email
private String confirmEmail;
}
The Annotation:
pac...
The tilde operator in Python
...o so before supplying an __invert__ method to your class. (Note that byte-strings [ex: '\xff'] do not support this operator, even though it is meaningful to invert all the bits of a byte-string.)
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Test for existence of nested JavaScript object key
...y property keys change (they will), all devs on the project would have to 'string search' the entire codebase. This isn't really a solution to the problem, as it introduces a much bigger problem
– Drenai
Jan 14 '18 at 11:20
...
Update Git branches from master
...
You have two options:
The first is a merge, but this creates an extra commit for the merge.
Checkout each branch:
git checkout b1
Then merge:
git merge origin/master
Then push:
git push origin b1
Alternatively, you can do a rebase:
git fetch
git rebase origin/master
...
Why does Clojure have “keywords” in addition to “symbols”?
... and global vars...
Keywords are generally used as lightweight "constant strings", e.g. for the keys of a hash-map or the dispatch values of a multimethod. Symbols are generally used to name variable and functions and it's less common to manipulate them as objects directly except in macros and su...