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How do I iterate through the alphabet?
...ition to string.ascii_lowercase you should also take a look at the ord and chr built-ins. ord('a') will give you the ascii value for 'a' and chr(ord('a')) will give you back the string 'a'.
Using these you can increment and decrement through character codes and convert back and forth easily enough....
How does the Brainfuck Hello World actually work?
...ints(‘.’) character with that ascii value. i.e for example in python:
chr(70+2) # prints 'H'
>+.
moves to 2nd cell increment 1 to its value 100+1 and prints(‘.’) its value i.e chr(101)
chr(101) #prints ‘e’
now there is no > or < in next piece so it takes present value of lat...
Unicode character in PHP string
...
Try Portable UTF-8:
$str = utf8_chr( 0x1000 );
$str = utf8_chr( '\u1000' );
$str = utf8_chr( 4096 );
All work exactly the same way. You can get the codepoint of a character with utf8_ord(). Read more about Portable UTF-8.
...
How to generate the “create table” sql statement for an existing table in postgreSQL
...
edited May 31 at 10:55
Chris Stryczynski
16.2k2121 gold badges8383 silver badges166166 bronze badges
answered Apr 7 '10 at 17:32
...
Why can't Python's raw string literals end with a single backslash?
...
Another trick is to use chr(92) as it evaluates to "\".
I recently had to clean a string of backslashes and the following did the trick:
CleanString = DirtyString.replace(chr(92),'')
I realize that this does not take care of the "why" but the t...
Determine the data types of a data frame's columns
...o change data type of a column:
library(hablar)
mtcars %>%
convert(chr(mpg, am),
int(carb))
converts columns mpg and am to character and the column carb to integer:
# A tibble: 32 x 11
mpg cyl disp hp drat wt qsec vs am gear carb
<chr> <dbl>...
Insert text with single quotes in PostgreSQL
...
you can use the postrgesql chr(int) function:
insert into test values (2,'|| chr(39)||'my users'||chr(39)||');
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Setting the correct encoding when piping stdout in Python
...t(sys.getfilesystemencoding())
print(os.environ["PYTHONIOENCODING"])
print(chr(246), chr(9786), chr(9787))
gives you
utf_8
False
ANSI_X3.4-1968
ascii
utf_8
ö ☺ ☻
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The difference between bracket [ ] and double bracket [[ ]] for accessing the elements of a list or
...ist(c("a", "b", "c"), c(1,2,3,4), c(8e6, 5.2e9, -9.3e7))
str(alist[[1]])
chr [1:3] "a" "b" "c"
str(alist[1])
List of 1
$ : chr [1:3] "a" "b" "c"
str(alist[[1]][1])
chr "a"
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How to convert a column number (e.g. 127) into an Excel column (e.g. AA)
...ame = ""
Do While (d > 0)
m = (d - 1) Mod 26
name = Chr(65 + m) + name
d = Int((d - m) / 26)
Loop
GetColumnName = name
End Function
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