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How can I remove a key and its value from an associative array?
...$array['key-here']);
Example:
$array = array("key1" => "value1", "key2" => "value2");
print_r($array);
unset($array['key1']);
print_r($array);
unset($array['key2']);
print_r($array);
Output:
Array
(
[key1] => value1
[key2] => value2
)
Array
(
[key2] => value2
)
Arr...
Git push to wrong branch
...anch.
git checkout wrong_branch
git revert commitsha1
git revert commitsha2
git checkout right_branch
git cherry-pick commitsha1
git cherry-pick commitsha2
If the commits are grouped together and there are no commits pushed after your dirty commits, you can even use git reset to get that wrong br...
MongoDB: update every document on one field
...ocument. In the Mongo shell, or with any MongoDB client:
$version >= 3.2:
db.foo.updateMany( {}, <update> )
{} is the condition (the empty condition matches any document)
3.2 > $version >= 2.2:
db.foo.update( {}, <update>, { multi: true } )
{} is the condition (the em...
How can I find the version of the Fedora I use?
...
vdegenne
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answered Feb 12 '09 at 9:31
David GrantDavid Gr...
Making a UITableView scroll when text field is selected
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How to get the original value of an attribute in Rails
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243
Before rails 5.1
Appending _was to your attribute will give you the previous value.
For rail...
Undo a Git merge that hasn't been pushed yet
...
32 Answers
32
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How I can delete in VIM all text from current line to end of file?
...head hugefile > firstlines
(If you are on Windows you can use the Win32 port of head)
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Replace first occurrence of string in Python
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2 Answers
2
Active
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Appending HTML string to the DOM
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247
Use insertAdjacentHTML if it's available, otherwise use some sort of fallback. insertAdjacentH...