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Can I get “&&” or “-and” to work in PowerShell?
...is:
(build) -and (run_tests)
It has the same logic, but the output text from the commands is lost. Maybe it is good enough for you, though.
If you're doing this in a script, you will probably be better off separating the statements, like this:
build
if ($?) {
run_tests
}
2019/11/27: The ...
Do I cast the result of malloc?
...bits of your returned address. Note: as of C99 implicit functions are gone from C, and this point is no longer relevant since there's no automatic assumption that undeclared functions return int.
As a clarification, note that I said "you don't cast", not "you don't need to cast". In my opinion, it...
Reading/parsing Excel (xls) files with Python
...with Pandas using ExcelFile function, but it did not work properly for me. From here I found the read_excel function which works just fine:
import pandas as pd
dfs = pd.read_excel("your_file_name.xlsx", sheet_name="your_sheet_name")
print(dfs.head(10))
P.S. You need to have the xlrd installed for...
How to add an object to an array
...'e', 'f']
// y = ['d', 'e', 'f'] (remains unchanged)
Create a new array from the contents of two arrays
var x = ['a', 'b', 'c'];
var y = ['d', 'e', 'f'];
var z = x.concat(y);
// x = ['a', 'b', 'c'] (remains unchanged)
// y = ['d', 'e', 'f'] (remains unchanged)
// z = ['a', 'b', 'c', 'd', 'e', ...
How to convert timestamps to dates in Bash?
...script that converts a Unix timestamp to a date. The input can come either from the first parameter or from stdin, allowing for the following usage patterns:
...
How to get the full url in Express?
...e value https, in which case you know that's your protocol
The host comes from req.get('host') as Gopal has indicated
Hopefully you don't need a non-standard port in your URLs, but if you did need to know it you'd have it in your application state because it's whatever you passed to app.listen at s...
Reactjs: Unexpected token '
... That jsbin seems to have their own way of executing the JS, the error is from within their code.
– krs
Jan 3 '14 at 14:56
...
Add SUM of values of two LISTS into new LIST
...
From docs
import operator
list(map(operator.add, first,second))
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What are .dex files in Android?
... some Reverse Engineering Techniques to make a jar file or java class file from a .dex file.
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What does “static” mean in C?
...f we crank up the optimization with -O3, the si symbol is removed entirely from the symbol table: it cannot be used from outside anyways. TODO why keep static variables on the symbol table at all when there is no optimization? Can they be used for anything? Maybe for debugging.
See also
analogous...