大约有 40,000 项符合查询结果（耗时：0.0696秒） [XML]
Copy array by value
...ingify(arr1));
arr2 = $.extend(true, [], arr1); // jQuery.js needed
arr2 = _.extend(arr1); // Underscore.js needed
arr2 = _.cloneDeep(arr1); // Lo-dash.js needed
arr2 = copy(arr1); // Custom-function needed - as provided above
...
How to use icons and symbols from “Font Awesome” on Native Android Application
...entry in strings.xml for each icon. Eg for a heart:
<string name="icon_heart">&#xf004;</string>
Referenced said entry in the view of my xml layout:
<Button
android:id="@+id/like"
style="?android:attr/buttonStyleSmall"
...
android:text="@string/icon_heart" ...
PHP mail function doesn't complete sending of e-mail
...les (or in a master configuration file) will enable error reporting.
error_reporting(-1);
ini_set('display_errors', 'On');
set_error_handler("var_dump");
See How can I get useful error messages in PHP? — this answer for more details on this.
Make sure the mail() function is called
It may seem...
Should I compile with /MD or /MT?
...e gone. This is commonly known as "dll hell", see en.wikipedia.org/wiki/DLL_Hell
– Adrian Grigore
Sep 18 '12 at 19:24
...
How to create composite primary key in SQL Server 2008
...
create table my_table (
column_a integer not null,
column_b integer not null,
column_c varchar(50),
primary key (column_a, column_b)
);
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Explain how finding cycle start node in cycle linked list work?
... @Passionate: Take mu steps from the start point to get to X_mu, the start of the cycle (by definition of mu). Then if you take i more steps, where i is a multiple of the cycle length, you end up back at the cycle start: X_mu + i = X_mu. But addition is commutative, so this is equiva...
Using comparison operators in Scala's pattern matching system
...("ten")
case x if x > 10 => println("greater than ten")
case _ => println("less than ten")
}
Edit: Note that this is more than superficially different to putting an if after the =>, because a pattern won't match if the guard is not true.
...
Creating a zero-filled pandas data frame
... try this:
d = pd.DataFrame(0, index=np.arange(len(data)), columns=feature_list)
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How do you represent a JSON array of strings?
...inted.
Here are a few extra valid JSON examples, one per block:
{}
[0]
{"__comment": "json doesn't accept comments and you should not be commenting even in this way", "avoid!": "also, never add more than one key per line, like this"}
[{ "why":null} ]
{
"not true": [0, false],
"true": true,...
Getting the location from an IP address [duplicate]
... "CA",
"country": "US",
"phone": 650
}
Here's a PHP example:
$ip = $_SERVER['REMOTE_ADDR'];
$details = json_decode(file_get_contents("http://ipinfo.io/{$ip}/json"));
echo $details->city; // -> "Mountain View"
You can also use it client-side. Here's a simple jQuery example:
$.get(...