大约有 47,000 项符合查询结果（耗时：0.0603秒） [XML]
What is the difference between connection and read timeout for sockets?
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answered Jun 18 '10 at 12:14
Stephen CStephen C
603k8282 gold badges700700 silver badges10591059 bronze badges
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Detail change after Git pull
...an refer to the previous position of master by master@{1} (or even master@{10.minutes.ago}; see the specifying revisions section of the git-rev-parse man page), so that you can do things like
See all of the changes: git diff master@{1} master
See the changes to a given file: git diff master@{1} ma...
sed or awk: delete n lines following a pattern
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answered Dec 9 '10 at 12:56
dogbanedogbane
232k6969 gold badges359359 silver badges391391 bronze badges
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Check if a given key already exists in a dictionary
...e intended way to test for the existence of a key in a dict.
d = {"key1": 10, "key2": 23}
if "key1" in d:
print("this will execute")
if "nonexistent key" in d:
print("this will not")
If you wanted a default, you can always use dict.get():
d = dict()
for i in range(100):
key = i % ...
What is the _snowman param in Ruby on Rails 3 forms for?
...ve to fix, though.
– tadman
Jul 28 '10 at 15:31
1
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Regular expression matching a multiline block of text
...owLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\...
Getting the parent div of element
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@Ullullu—let's see, 10,000 lines of library or a 10 line function? ;-)
– RobG
May 8 '17 at 11:40
add a comment
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What is the behavior of integer division?
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answered Aug 30 '10 at 17:44
dirkgentlydirkgently
98.7k1616 gold badges119119 silver badges180180 bronze badges
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Array vs. Object efficiency in JavaScript
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The short version: Arrays are mostly faster than objects. But there is no 100% correct solution.
Update 2017 - Test and Results
var a1 = [{id: 29938, name: 'name1'}, {id: 32994, name: 'name1'}];
var a2 = [];
a2[29938] = {id: 29938, name: 'name1'};
a2[32994] = {id: 32994, name: 'name1'};
var o =...
How to check for Is not Null And Is not Empty string in SQL server?
...s UNKNOWN for these rather than TRUE.
CREATE TABLE T
(
C VARCHAR(10)
);
INSERT INTO T
VALUES ('A'),
(''),
(' '),
(NULL);
SELECT *
FROM T
WHERE C <> ''
Returns just the single row A. I.e. The rows with NULL or an empty strin...