大约有 40,000 项符合查询结果（耗时：0.0400秒） [XML]
Docker how to change repository name or rename image?
...
Note that you probably want docker image tag from_server:version to_server:version as described here: docs.docker.com/engine/reference/commandline/image_tag
– Traveler
Mar 21 '19 at 0:49
...
Chain-calling parent initialisers in python [duplicate]
...Python 3 includes an improved super() which allows use like this:
super().__init__(args)
share
|
improve this answer
|
follow
|
...
Is there a better way to express nested namespaces in C++ within the header
...ry rare cases in C++ where I actually like the use of #defines.
#define MY_COMPANY_BEGIN namespace MyCompany { // begin of the MyCompany namespace
#define MY_COMPANY_END } // end of the MyCompany namespace
#define MY_LIBRARY_BEGIN namespace MyLibrary { // begin of the MyLib...
Attach parameter to button.addTarget action in Swift
...tton.addTarget(self, action: #selector(YourViewController.webButtonTouched(_:)), for:.touchUpInside)
webButton.params["myvalue"] = "bob"
then finally catch it all here
@IBAction func webButtonTouched(_ sender: PassableUIButton) {
print(sender.params["myvalue"] ?? "")
}
You do this one time ...
Differences between lodash and underscore [closed]
...Of"), while in older browsers they will not. Also, Underscore methods like _.clone preserve holes in arrays, while others like _.flatten don't.
share
|
improve this answer
|
...
What are the “standard unambiguous date” formats for string-to-date conversion in R?
...sion will depend on your locale (see the examples in ?strptime and read ?LC_TIME).
share
|
improve this answer
|
follow
|
...
Paste multiple columns together
...c('d', 'e', 'f'),
'd' = c('g', 'h', 'i'))
tidyr::unite_(data, paste(colnames(data)[-1], collapse="_"), colnames(data)[-1])
a b_c_d
1 1 a_d_g
2 2 b_e_h
3 3 c_f_i
Edit: Exclude first column, everything else gets pasted.
# tidyr_0.6.3
unite(data, newCol, -a)
# or by colum...
How do I create an abstract base class in JavaScript?
...act),
// add class members to C.prototype,
// provide optional C.prototype._init() method to initialise from constructor args,
// call base class methods using Base.prototype.call(this, ...).
//
Function.prototype.subclass= function(isabstract) {
if (isabstract) {
var c= new Function(
...
Gradle does not find tools.jar
...o use the package tools.jar, which is in the lib folder from the jdk (1.6.0_26 in my case).
21 Answers
...
What does Python's eval() do?
... command string and then have python run it as code. So for example: eval("__import__('os').remove('file')").
– BYS2
Feb 21 '12 at 19:24
...