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UnicodeDecodeError: 'utf8' codec can't decode byte 0xa5 in position 0: invalid start byte
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The same issue appears for me when executing an sqlalchemy query, how would I encode the query (has no .encode, since its not a string)?
– c8999c 3f964f64
Jul 3 at 9:27
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Split list into smaller lists (split in half)
... edited Sep 16 '18 at 23:31
maxymoo
27.4k77 gold badges6969 silver badges9696 bronze badges
answered Apr 15 '09 at 15:49
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How to run a program without an operating system?
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http://wiki.osdev.org/Introduction
Also, if you don't want to experiment directly on hardware, you can run it as a virtual machine using hypervisors like qemu. See how to run "hello world" directly on virtualized ARM hardware here.
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How to copy a directory using Ant
...e difference is not so subtle when you can't load your resources with the expected pathnames.
– Jim Pivarski
Jul 10 '13 at 18:48
1
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Failed to build gem native extension (installing Compass)
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This fixes the error on Ubuntu, but it seems OP is using OSX.
– mhnagaoka
Oct 8 '14 at 5:33
1
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Print an integer in binary format in Java
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Assuming you mean "built-in":
int x = 100;
System.out.println(Integer.toBinaryString(x));
See Integer documentation.
(Long has a similar method, BigInteger has an instance method where you can specify the radix.)
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Find value in an array
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I'm guessing that you're trying to find if a certain value exists inside the array, and if that's the case, you can use Array#include?(value):
a = [1,2,3,4,5]
a.include?(3) # => true
a.include?(9) # => false
If you mean something else, check the Ruby Array API
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Check if property has attribute
...hat is the fastest way to determine if it contains a given attribute? For example:
8 Answers
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What is the difference between \r and \n?
How are \r and \n different? I think it has something to do with Unix vs. Windows vs. Mac, but I'm not sure exactly how they're different, and which to search for/match in regexes.
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String comparison in bash. [[: not found
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$ sh myscript
you should try:
$ bash myscript
or, if the script is executable:
$ ./myscript
sh and bash are two different shells. While in the first case you are passing your script as an argument to the sh interpreter, in the second case you decide on the very first line which interpreter...