大约有 16,400 项符合查询结果(耗时:0.0378秒) [XML]
Execute SQLite script
I start up sqlite3 version 3.7.7, unix 11.4.2 using this command:
5 Answers
5
...
Find the max of two or more columns with pandas
I have a dataframe with columns A , B . I need to create a column C such that for every record / row:
2 Answers
...
Doctrine and composite unique keys
I want to do composite unique key in doctrine.
Those are my fields:
3 Answers
3
...
How to exit a function in bash
...
Use:
return [n]
From help return
return: return [n]
Return from a shell function.
Causes a function or sourced script to exit with the return value
specified by N. If N is omitted, the return status is that of the
last command executed withi...
Indentation in Go: tabs or spaces?
Is there a standard Google Go coding conventions document somewhere that sets whether tabs or spaces are preferred for indentation in Go source code? If not, what is the (statistically) more popular option?
...
How to create a template function within a class? (C++)
I know it's possible to make a template function:
4 Answers
4
...
Usage of sys.stdout.flush() method
...
Python's standard out is buffered (meaning that it collects some of the data "written" to standard out before it writes it to the terminal). Calling sys.stdout.flush() forces it to "flush" the buffer, meaning that it will write everything in the buffer to the ...
How to git bundle a complete repo
I need to transfer a complete repo to a new non-networked machine, preferable as a single file entity. The git bundle allows a git fetch , git pull style operation in a sneakernet environment but appears to assume that you already have a working version of the repo on the destination machine.
...
How can I map True/False to 1/0 in a Pandas DataFrame?
I have a column in python pandas DataFrame that has boolean True/False values, but for further calculations I need 1/0 representation. Is there a quick pandas/numpy way to do that?
...
Loop through properties in JavaScript object with Lodash
...
Yes you can and lodash is not needed... i.e.
for (var key in myObject.options) {
// check also if property is not inherited from prototype
if (myObject.options.hasOwnProperty(key)) {
var value = myObject.options[key];
}
}
Edit: the accepted answer (_.forOwn()) should be ht...
