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Is there any kind of hash code function in JavaScript?
...m trying to create an object of unique objects, a set. I had the brilliant idea of just using a JavaScript object with objects for the property names. Such as,
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How to center canvas in html5
...0;
margin-left: auto;
margin-right: auto;
display: block;
width: 800px;
}
Edit
Since this answer is quite popular, let me add a little bit more details.
The above properties will horizontally center the canvas, div or whatever other node you have relative to it's parent. There ...
How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
...ERT ... ON DUPLICATE KEY UPDATE. For example:
INSERT INTO `usage`
(`thing_id`, `times_used`, `first_time_used`)
VALUES
(4815162342, 1, NOW())
ON DUPLICATE KEY UPDATE
`times_used` = `times_used` + 1
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How exactly to use Notification.Builder
... so we can use this to support API level v4 and up:
http://developer.android.com/reference/android/support/v4/app/NotificationCompat.Builder.html
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uncaught syntaxerror unexpected token U JSON
...eturning the json data from a php file and the returning json string is valid. I checked it with http://jsonlint.com/ . Any help would be appreciated... Thanks.
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How to apply unmerged upstream pull requests from other forks into my fork?
...fork/pullrequest-branch
If you only want the commits in the pull request, identify their SHA1 and do
git cherry-pick <first-SHA1> <second-SHA1> <etc.>
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How can I autoplay a video using the new embed code style for Youtube?
I can't work out how to autoplay a video using the new embed code style for Youtube . I tried adding &autoplay=1 to the url, which worked with the old style, but it didn't work. For example, http://www.youtube.com/embed/JW5meKfy3fY is the embed link, but http://www.youtube.com/embed/JW5meKfy3fY&...
jQuery UI: Datepicker set year range dropdown to 100 years
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@Obsidian c actually means "Current selected year" and not current year api.jqueryui.com/datepicker/#option-yearRange
– ᾠῗᵲᄐᶌ
Apr 27 '17 at 15:23
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When do I need to use Begin / End Blocks and the Go keyword in SQL Server?
...re you need more then one step...
IF EXISTS (SELECT * FROM my_table WHERE id = @id)
BEGIN
INSERT INTO Log SELECT @id, 'deleted'
DELETE my_table WHERE id = @id
END
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What's the difference between equal?, eql?, ===, and ==?
...u to read it, and also the documentation for these methods as they're overridden in other classes, like String.
Side note: if you want to try these out for yourself on different objects, use something like this:
class Object
def all_equals(o)
ops = [:==, :===, :eql?, :equal?]
Hash[ops.map(...