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What's Mongoose error Cast to ObjectId failed for value XXX at path “_id”?

...ng a request to /customers/41224d776a326fb40f000001 and a document with _id 41224d776a326fb40f000001 does not exist, doc is null and I'm returning a 404 : ...
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Static class initializer in PHP

... * @var Singleton */ private static $instance; private function __construct() { // Your "heavy" initialization stuff here } public static function getInstance() { if ( is_null( self::$instance ) ) { self::$instance = new self(); } return self::$instance;...
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How to read and write INI file with Python3?

...['DEFAULT']['path'] = '/var/shared/' # update config['DEFAULT']['default_message'] = 'Hey! help me!!' # create with open('FILE.INI', 'w') as configfile: # save config.write(configfile) You can find more at the official configparser documentation. ...
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Encode String to UTF-8

... How about using ByteBuffer byteBuffer = StandardCharsets.UTF_8.encode(myString) share | improve this answer | follow | ...
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define() vs. const

... a static scalar (number, string or other constant like true, false, null, __FILE__), whereas define() takes any expression. Since PHP 5.6 constant expressions are allowed in const as well: const BIT_5 = 1 << 5; // Valid since PHP 5.6 and invalid previously define('BIT_5', 1 << 5); /...
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bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

bpftrace教程【官方】bpftrace_tutorial该教程通过12个简单小节帮助你了解bpftrace的使用。每一小节都是一行的命令,你可以立马运行并看到运行效果。该教程系列用来介绍bpftrace的概念。关于bpftrace的完整参考,见bpftr 该教程通过12...
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Detecting request type in PHP (GET, POST, PUT or DELETE)

... By using $_SERVER['REQUEST_METHOD'] Example if ($_SERVER['REQUEST_METHOD'] === 'POST') { // The request is using the POST method } For more details please see the documentation for the $_SERVER variable. ...
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What exactly does Perl's “bless” do?

... package Person; sub new { my $class = shift; my $self = { _firstName => shift, _lastName => shift, _ssn => shift, }; # Print all the values just for clarification. print "First Name is $self->{_firstName}\n"; print "Last Name is $se...
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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?

...)<sizeof(int)' is false. ..22 floating point is always IEEE but 'STDC_IEC_559_is_defined' is false. ..25 pointer arithmetic works outside arrays but '(diff=&var.int2-&var.int1, &var.int1+diff==&var.int2)' is false. From what I can say with my puny test cases, you are Stop at...
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How can I add a PHP page to WordPress?

...und that this approach works best, in your .php file: <?php require_once(dirname(__FILE__) . '/wp-config.php'); $wp->init(); $wp->parse_request(); $wp->query_posts(); $wp->register_globals(); $wp->send_headers(); // Your WordPress functions here... ...