大约有 40,000 项符合查询结果（耗时：0.0648秒） [XML]
Arrays, heap and stack and value types
...given the following types:
class RefType{
public int I;
public string S;
public long L;
}
struct ValType{
public int I;
public string S;
public long L;
}
The values of each of these types would require 16 bytes of memory (assuming a 32-bit word size). The field...
All falsey values in JavaScript
...Int type: 0n and -0n (new in 2020, thanks GetMeARemoteJob)
"", '' and `` - strings of length 0
null
undefined
NaN
document.all (in HTML browsers only)
This is a weird one. document.all is a falsey object, with typeof as undefined. It was a Microsoft-proprietory function in IE before IE11, and was...
Using Chrome, how to find to which events are bound to an element
...nel. Use a Mouse -> click breakpoint and then "step into next function call" while keeping an eye on the call stack to see what userland function handles the event. Ideally, you'd replace the minified version of jQuery with an unminified one so that you don't have to step in all the time, and use...
SQL Server String or binary data would be truncated
...a table from, say, a web service, where the datatype is defined only as a "string". I can't make everything a Varchar(MAX)...
– Curt
Dec 17 '19 at 5:34
add a comment
...
Interview question: Check if one string is a rotation of other string [closed]
...ake sure s1 and s2 are of the same length. Then check to see if s2 is a substring of s1 concatenated with s1:
algorithm checkRotation(string s1, string s2)
if( len(s1) != len(s2))
return false
if( substring(s2,concat(s1,s1))
return true
return false
end
In Java:
boolean isRotation...
Get type of all variables
...le numeric with L postfixed: integer
typeof("foobar") #A single string in double quotes: character
typeof(1) #a single numeric: double
typeof(list(5,6,7)) #a list of numeric: list
typeof(2i) #an imaginary number ...
How can I get a count of the total number of digits in a number?
...
Without converting to a string you could try:
Math.Ceiling(Math.Log10(n));
Correction following ysap's comment:
Math.Floor(Math.Log10(n) + 1);
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How to do a https request with bad certificate?
Say I want to get https://golang.org programatically. Currently golang.org (ssl) has a bad certificate which is issued to *.appspot.com So when I run this:
...
Switch statement for string matching in JavaScript
...
You can't do it in a switch unless you're doing full string matching; that's doing substring matching. (This isn't quite true, as Sean points out in the comments. See note at the end.)
If you're happy that your regex at the top is stripping away everything that you don't want ...
How do I tar a directory of files and folders without including the directory itself?
I typically do:
17 Answers
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