大约有 36,000 项符合查询结果（耗时：0.0314秒） [XML]
Array initializing in Scala
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edited Jun 1 '11 at 12:09
answered Oct 7 '10 at 11:11
Va...
Circle line-segment collision detection algorithm?
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206
Taking
E is the starting point of the ray,
L is the end point of the ray,
C is the cente...
Fastest way to remove first char in a String
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edited Jul 11 '10 at 7:02
answered Jul 11 '10 at 6:44
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In git, is there a way to show untracked stashed files without applying the stash?
...er, said untracked files don't show up at all with git stash show stash@{0} . Is there any way to show untracked stashed files without applying the stash?
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How to format a Java string with leading zero?
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In case you have to do it without the help of a library:
("00000000" + "Apple").substring("Apple".length())
(Works, as long as your String isn't longer than 8 chars.)
share
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impro...
How to find gaps in sequential numbering in mysql?
...ible) answer
Here's version that works on table of any size (not just on 100 rows):
SELECT (t1.id + 1) as gap_starts_at,
(SELECT MIN(t3.id) -1 FROM arrc_vouchers t3 WHERE t3.id > t1.id) as gap_ends_at
FROM arrc_vouchers t1
WHERE NOT EXISTS (SELECT t2.id FROM arrc_vouchers t2 WHERE t2.id...
Count with IF condition in MySQL query
...ELECT
ccc_news . * ,
SUM(if(ccc_news_comments.id = 'approved', 1, 0)) AS comments
FROM
ccc_news
LEFT JOIN
ccc_news_comments
ON
ccc_news_comments.news_id = ccc_news.news_id
WHERE
`ccc_news`.`category` = 'news_layer2'
AND `ccc_news`.`status` = 'Active'
GROU...
Simple (non-secure) hash function for JavaScript? [duplicate]
...numerical hash code (more specifically, a Java equivalent) such as 1395333309.
String.prototype.hashCode = function() {
var hash = 0;
if (this.length == 0) {
return hash;
}
for (var i = 0; i < this.length; i++) {
var char = this.charCodeAt(i);
hash = ((ha...
How to convert Nonetype to int or string?
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10 Answers
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