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How to check if a string is a valid hex color representation?
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287
/^#[0-9A-F]{6}$/i.test('#AABBCC')
To elaborate:
^ -> match beginning
# ...
Landscape printing from HTML
... below.
@media print{@page {size: landscape}}
The @page is part of CSS 2.1 specification however this size is not as highlighted by the answer to the question Is @Page { size:landscape} obsolete?:
CSS 2.1 no longer specifies the size attribute. The current working
draft for CSS3 Paged Medi...
How do I add more members to my ENUM-type column in MySQL?
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ALTER TABLE
`table_name`
MODIFY COLUMN
`column_name2` enum(
'existing_value1',
'existing_value2',
'new_value1',
'new_value2'
)
NOT NULL AFTER `column_name1`;
share...
Cannot deserialize the JSON array (e.g. [1,2,3]) into type ' ' because type requires JSON object (e.
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edited Jun 1 '15 at 11:52
answered Mar 21 '14 at 11:40
ha...
PHP array: count or sizeof?
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192
I would use count() if they are the same, as in my experience it is more common, and therefore w...
Find current directory and file's directory [duplicate]
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edited Jul 31 '16 at 12:34
Mark Amery
98.8k4848 gold badges336336 silver badges379379 bronze badges
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How to efficiently build a tree from a flat structure?
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123
Store IDs of the objects in a hash table mapping to the specific object. Enumerate through all ...
SQL Server SELECT into existing table
...st - otherwise, you have to use:
INSERT INTO dbo.TABLETWO
SELECT col1, col2
FROM dbo.TABLEONE
WHERE col3 LIKE @search_key
This assumes there's only two columns in dbo.TABLETWO - you need to specify the columns otherwise:
INSERT INTO dbo.TABLETWO
(col1, col2)
SELECT col1, col2
FROM dbo.TAB...
How to select all records from one table that do not exist in another table?
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12 Answers
12
Active
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How to find unused images in an Xcode project?
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Iulian Onofrei
6,78988 gold badges5252 silver badges9393 bronze badges
answered May 24 '11 at 16:11
RomanRoman
12...