大约有 40,000 项符合查询结果(耗时:0.0411秒) [XML]

https://stackoverflow.com/ques... 

map function for objects (instead of arrays)

... of obj1 sit on the 'prototype' of obj2 console.log(obj2) // Prints: obj2.__proto__ = { 'a': 1, 'b': 2, 'c': 3} console.log(Object.keys(obj2)); // Prints: an empty Array. for (key in obj2) { console.log(key); // Prints: 'a', 'b', 'c' } jsbin However, please do me a favor and av...
https://stackoverflow.com/ques... 

passport.js passport.initialize() middleware not in use

.... I keep getting this exception after authentication success (I see the callback url on the browser): 7 Answers ...
https://stackoverflow.com/ques... 

Check whether an array is empty [duplicate]

...pty($errors)) { } array_filter() function's default behavior will remove all values from array which are equal to null, 0, '' or false. Otherwise in your particular case empty() construct will always return true if there is at least one element even with "empty" value. ...
https://stackoverflow.com/ques... 

Bogus foreign key constraint fail

...each query (bugs.mysql.com/bug.php?id=8280), making it neccessary to write all the drop statements in one query, eg. SET FOREIGN_KEY_CHECKS=0; DROP TABLE my_first_table_to_drop; DROP TABLE my_second_table_to_drop; SET FOREIGN_KEY_CHECKS=1; Where the SET FOREIGN_KEY_CHECKS=1 serves as an extr...
https://stackoverflow.com/ques... 

How do I read from parameters.yml in a controller in symfony2?

...and then - the needed parameter. $this->container->getParameter('api_user'); This documentation chapter explains it. While $this->get() method in a controller will load a service (doc) In Symfony 2.7 and newer versions, to get a parameter in a controller you can use the following: $th...
https://stackoverflow.com/ques... 

Returning value that was passed into a method

... @TheSenator Agree, I don't reacall already what this was about but I guess I was just hacking some unit tests together for already existing code I was not to modify, otherwise this number of arguments definitely calls for refactoring. ...
https://stackoverflow.com/ques... 

How to grey out a button?

... disabled by setting the alpha (making it semi-transparent). This is especially useful if your button background is an image, and you don't want to create states for it. button.setAlpha(.5f); button.setClickable(false); update: I wrote the above solution pre Kotlin and when I was a rookie. It's m...
https://stackoverflow.com/ques... 

PHP Function with Optional Parameters

...wered Oct 20 '10 at 14:32 Matt BallMatt Ball 323k8585 gold badges599599 silver badges672672 bronze badges ...
https://stackoverflow.com/ques... 

Specifying an Index (Non-Unique Key) Using JPA

...Table; @Entity @Table(name = "region", indexes = {@Index(name = "my_index_name", columnList="iso_code", unique = true), @Index(name = "my_index_name2", columnList="name", unique = false)}) public class Region{ @Column(name = "iso_code", nullable = false) priva...
https://stackoverflow.com/ques... 

PHP function to get the subdomain of a URL

...hen dealing with co.uk, for example, it does not. As seen here This is actually a harder problem to solve. – Mike Lewis Mar 13 '11 at 23:12 2 ...