大约有 45,000 项符合查询结果（耗时：0.0616秒） [XML]
MySQL Query to select data from last week?
...above will be like that: SELECT id FROM tbl WHERE DATE > DATE_SUB(DATE(NOW()), INTERVAL DAYOFWEEK(NOW())+6 DAY) AND DATE <= DATE_SUB(DATE(NOW()), INTERVAL DAYOFWEEK(NOW())-1 DAY)
– Xman Classical
Feb 1 '16 at 2:41
...
URLWithString: returns nil
...
breaks if the URL has a # in it. stringByAddingPercentEscapesUsingEncoding converts # to %2
– Ali Saeed
Mar 2 '16 at 21:21
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Better way of getting time in milliseconds in javascript?
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Try Date.now().
The skipping is most likely due to garbage collection. Typically garbage collection can be avoided by reusing variables as much as possible, but I can't say specifically what methods you can use to reduce garbage coll...
How to set a default value for a datetime column to record creation time in a migration?
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This is supported now in Rails 5.
Here is a sample migration:
class CreatePosts < ActiveRecord::Migration[5.0]
def change
create_table :posts do |t|
t.datetime :modified_at, default: -> { 'CURRENT_TIMESTAMP' }
t.time...
How to get all possible combinations of a list’s elements?
...t iterable.
Combinations are emitted in lexicographic sort order. So, if the
input iterable is sorted, the
combination tuples will be produced in
sorted order.
Since 2.6, batteries are included!
share
|...
How to obtain the start time and end time of a day?
... // Represents an entire day, without time-of-day and without time zone.
.now( // Capture the current date.
ZoneId.of( "Asia/Tokyo" ) // Returns a `ZoneId` object.
) // Returns a `LocalDate` object.
.atStartOfDay( // Det...
Override Java System.currentTimeMillis for testing time sensitive code
...than manually changing the system clock on the host machine?
Yes.
Instant.now(
Clock.fixed(
Instant.parse( "2016-01-23T12:34:56Z"), ZoneOffset.UTC
)
)
Clock In java.time
We have a new solution to the problem of a pluggable clock replacement to facilitate testing with faux date-ti...
PHP validation/regex for URL
... outer double-quotes (they were only needed because of the pointless /e modifier on the regex).
– Alan Moore
May 30 '09 at 5:53
1
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Can't subtract offset-naive and offset-aware datetimes
...L. When I pull data from the table, I then want to subtract the time right now so I can get it's age.
10 Answers
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How do you convert a JavaScript date to UTC?
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Simple and stupid
var date = new Date();
var now_utc = Date.UTC(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate(),
date.getUTCHours(), date.getUTCMinutes(), date.getUTCSeconds());
return new Date(now_utc);
...