class-names | 易学教程

Why is collections.Counter uppercase and collections.defaultdict is not?

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问题 Some of the elements in the collections module seem to be uppercase, some other not. Is there a specific rationale behind it? 回答1: According to this reddit comment All classes written in python are upper camel case. All types based on C code are lower. [like the primitives] namedtuple is a function, thus follows the naming convention of functions. deque and defaultdict are types, (C); Counter and OrderedDict are classes, (Python). 来源： https://stackoverflow.com/questions/33636940/why-is

Why is collections.Counter uppercase and collections.defaultdict is not?

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Java - class name starts with numbers [duplicate]

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问题 This question already has answers here : Valid characters in a Java class name (8 answers) Closed 2 years ago . I have done my HW already but our instructor wants us to submit our HWs as yourID_BFS_DFS.java. And I can't do that, it returns error. I know that numbers are not Java letters and it is illegal (I checked other answers already) but still I want to ask you guys if there is a way (maybe a trick) to do that or he simply wants us to accomplish something illegal? And if I am not wrong,

Understanding the usage of clsx in React

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问题 I am trying to understand some uses of clsx in assigning classnames to a component in React. The construct className={clsx(classes.menuButton, open && classes.hide)} is clear enough. It applies 'classes.menuButton', and also applies 'classes.hide' if the value of the boolean 'open' is true. My question relates to this second example: className={clsx(classes.appBar, {[classes.appBarShift]: open })} This will apply 'classes.appBar'. But what is the meaning of the second parameter? 回答1: This is

Locating elements without a specific class name

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问题 This is in the same vein as this question I asked before - Watir webdriver; counting elements with changing class names. I was able to add the specific number of elements based on using the class name asset-card selectable . Currently, I am looking to click on more elements to add them to the existing set. Here is my dilemma: When an element is not clicked, the class name is: image-card asset-card selectable When an element is clicked, selected is appended to the class name: image-card asset

Does Symbol table for C++ code contain function names along with class names?

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I have been searching through various posts regarding whether symbol table for a C++ code contains functions' name along with the class name. Something which i could find on a post is that it depends on the type of compiler, if it compiles code in one-pass then it will not need to store class name and subroutine names in your symbol table but if it is a multi-pass compiler, it could add information about the class(es) it encounters and their subroutines so that it could do argument type checking and issue meaningful error messages. I could not understand whether it is actually compiler

Is it possible to have two classes with the same name if they're in different folders?

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I was wondering if there is anything wrong with having two classes with the same name in PHP if they're in different sub folders, other than the obvious "human factor" of editing the wrong file by mistake? I have looked for other posts relating to this, here and elsewhere on the web, but I didn't find any that could answer this specific question. I did however find this Autoload classes from different folders very helpful though, and in fact it solved one of my other questions. This is possible to have classes with same name even in same folder. But Make sure you have loaded only one class in

Does Symbol table for C++ code contain function names along with class names?

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问题 I have been searching through various posts regarding whether symbol table for a C++ code contains functions' name along with the class name. Something which i could find on a post is that it depends on the type of compiler, if it compiles code in one-pass then it will not need to store class name and subroutine names in your symbol table but if it is a multi-pass compiler, it could add information about the class(es) it encounters and their subroutines so that it could do argument type

Is it possible to have two classes with the same name if they're in different folders?

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问题 I was wondering if there is anything wrong with having two classes with the same name in PHP if they're in different sub folders, other than the obvious "human factor" of editing the wrong file by mistake? I have looked for other posts relating to this, here and elsewhere on the web, but I didn't find any that could answer this specific question. I did however find this Autoload classes from different folders very helpful though, and in fact it solved one of my other questions. 回答1: This is

Prefixing JAXB generated classes

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问题 I have this Maven "task" to generate Java classes from an XSD file using JAXB.  <plugin> <groupId>com.sun.tools.xjc.maven2</groupId> <artifactId>maven-jaxb-plugin</artifactId> <executions> <execution> <phase>generate-sources</phase> <goals> <goal>generate</goal> </goals> </execution> </executions> <configuration> <generatePackage>nl.compay.service</generatePackage> <schemaDirectory>src/main/webapp/compay</schemaDirectory> </configuration> </plugin> For an XSD type