大约有 46,000 项符合查询结果（耗时：0.0631秒） [XML]
Create a variable name with “paste” in R?
...
In my case function eval() works very good. Below I generate 10 variables and assign them 10 values.
lhs <- rnorm(10)
rhs <- paste("perf.a", 1:10, "<-", lhs, sep="")
eval(parse(text=rhs))
share
|
...
How to implement __iter__(self) for a container object (Python)
... to the sequence.
The following will create an iterator that yields five, and then every item in some_list.
def __iter__(self):
yield 5
yield from some_list
Pre-3.3, yield from didn't exist, so you would have to do:
def __iter__(self):
yield 5
for x in some_list:
yield x
...
Remove the complete styling of an HTML button/submit
...tyling of a button in Internet Explorer? I use a css sprite for my button, and everything looks ok.
7 Answers
...
Where are environment variables stored in registry?
...
You don't need to restart. Just kill Explorer.exe and bring it back alive. It's the parent process for e.g. cmd.exe (when started from the Start menu)
– Cristian Diaconescu
Dec 8 '12 at 1:04
...
Why does Node.js' fs.readFile() return a buffer instead of string?
...ontent of test.txt (which is on the same folder of the Javascript source) and display it using this code:
6 Answers
...
Force git stash to overwrite added files
I have some files which were untracked in git. I made some changes and wanted to commit them, but realised I had forgotten to check in the unmodified files first. So I stashed the files, then added the unmodified versions.
...
JavaScript: Class.method vs. Class.prototype.method
...ill be available to all the object instances created with the new keyword, and the context within that function (the this keyword) will refer to the actual object instance where you call it.
Consider this example:
// constructor function
function MyClass () {
var privateVariable; // private memb...
How to print HTML content on click of a button, but not the page? [duplicate]
...
this may destroy your animations and events that was added by js after load. Use with caution.
– Lukas Liesis
Dec 14 '15 at 16:45
7
...
How to detect Adblock on my website?
...
My solution is not specific to a certain ad network and is very lightweight. I've been running it in production for a few years. AdBlock blocks all URLs containing the word "ads" or "prebid". So this is what I did:
I added a small js file to my webroot with the name prebid-ads...
Named string formatting in C#
...
There is no built-in method for handling this.
Here's one method
string myString = "{foo} is {bar} and {yadi} is {yada}".Inject(o);
Here's another
Status.Text = "{UserName} last logged in at {LastLoginDate}".FormatWith(user);
A third improved method p...