大约有 40,000 项符合查询结果(耗时:0.0429秒) [XML]

https://stackoverflow.com/ques... 

Detect Browser Language in PHP

... why dont you keep it simple and clean <?php $lang = substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2); $acceptLang = ['fr', 'it', 'en']; $lang = in_array($lang, $acceptLang) ? $lang : 'en'; require_once "index_{$lang}.php"; ?> ...
https://stackoverflow.com/ques... 

New Array from Index Range Swift

...gt; but is of type ArraySlice<Int>. That's because Array's subscript(_:​) returns an ArraySlice<Element> that, according to Apple, presents a view onto the storage of some larger array. Besides, Swift also provides Array an initializer called init(_:​) that allows us to create a new...
https://stackoverflow.com/ques... 

How to convert a java.util.List to a Scala list

... import scala.collection.JavaConversions._ will do implicit conversion for you; e.g.: var list = new java.util.ArrayList[Int](1,2,3) list.foreach{println} share | ...
https://stackoverflow.com/ques... 

How to count the number of set bits in a 32-bit integer?

... may need to adjust it to work for a particular language (e.g. using uint32_t for C++ and >>> in Java): int numberOfSetBits(uint32_t i) { // Java: use int, and use >>> instead of >> // C or C++: use uint32_t i = i - ((i >> 1) & 0x55555555); i = (...
https://stackoverflow.com/ques... 

How do I remove a property from a JavaScript object?

... Another alternative is to use the Underscore.js library. Note that _.pick() and _.omit() both return a copy of the object and don't directly modify the original object. Assigning the result to the original object should do the trick (not shown). Reference: link _.pick(object, *keys) Return...
https://stackoverflow.com/ques... 

How do I mock a service that returns promise in AngularJS Jasmine unit test?

...ce; beforeEach(module('app.myService')); beforeEach(inject( function(_myService_, myOtherService, $q){ myService = _myService_; spyOn(myOtherService, "makeRemoteCallReturningPromise").and.callFake(function() { var deferred = $q.defer(); deferred.resolve('Remote call res...
https://stackoverflow.com/ques... 

How to turn on/off ReactJS 'development mode'?

...tely the magic comes down to React embedding references to process.env.NODE_ENV throughout the codebase; these act like a feature toggle. if (process.env.NODE_ENV !== "production") // do propType checks The above is the most common pattern, and other libraries follow it as well. So to "disable" t...
https://stackoverflow.com/ques... 

What is the list of possible values for navigator.platform as of today? [closed]

...mv5tejl Linux armv6l Linux armv7l Linux armv8l Linux i686 Linux i686 on x86_64 Linux i686 X11: based on X11 Window System Linux MSM8960_v3.2.1.1_N_R069_Rev:18: Sony Xperia V Linux ppc64 Linux x86_64 Linux x86_64 X11: based on X11 Window System Microsoft Even on a 64-bit Windows 8 they all stick to ...
https://stackoverflow.com/ques... 

check if variable is dataframe

...rame Yes: isinstance(x, pd.DataFrame) And don't even think about if obj.__class__.__name__ = 'DataFrame': expect_problems_some_day() isinstance handles inheritance (see What are the differences between type() and isinstance()?). For example, it will tell you if a variable is a string (eithe...
https://stackoverflow.com/ques... 

Add a column with a default value to an existing table in SQL Server

...TABLENAME} ADD {COLUMNNAME} {TYPE} {NULL|NOT NULL} CONSTRAINT {CONSTRAINT_NAME} DEFAULT {DEFAULT_VALUE} WITH VALUES Example: ALTER TABLE SomeTable ADD SomeCol Bit NULL --Or NOT NULL. CONSTRAINT D_SomeTable_SomeCol --When Omitted a Default-Constraint Name is autogenerated. DEFAULT (...