tags

问题 What is the difference between <s> and <del> ? I have read here that there are semantic differences between <b> and <strong> , does this apply to <s> and <del> ? Additionally, how are such semantic differences, if any, interpreted by search engines and what affect would they have on rankings? Are there any other tags that affect search rankings? 回答1: <s> and <del> both still exist in the HTML specification. The <del> element represents a removal from the document. The <s> represents contents

问题 What are escape tags in html? Are they " < > to represent " < > ? And how do these work? Is that hex, or what is it? How is it made, and why aren't they just the characters themselves? 回答1: How do these work? Anything &#num; is replaced with character from ASCII table, matching that num . Is that hex, or what is it? It's not hex, the number represents characters number in decimal in ASCII table. Check out ASCII table. Check Dec and HTML columns. Why aren't they just the characters themselves?

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed last year . Edit: This is technically a 2 part question. I've chosen the best answer that covers the question in general and linked to the answer that handles the specific question. What is the best way to document anonymous objects and functions with jsdoc? /** * @class {Page} Page Class

问题 Let's say I have the following tables: TAGS id: integer name: string POSTS id: integer body: text TAGGINGS id: integer tag_id: integer post_id: integer How would I go about writing a query that select all posts that are tagged with ALL of the following tags (name attribute of tags table): "Cheese", "Wine", "Paris", "Frace", "City", "Scenic", "Art" See also: Need help with sql query to find things with most specified tags (note: similar, but not a duplicate!) 回答1: Using IN: SELECT p.* FROM

问题 I've tagged a commit with a lightweight tag, and pushed that tag to a remote repo, shared with other developers. I have now realised I should have annotated it so that it appears in git describe . Is there a way to convert it/re-tag the commit without breaking things? 回答1: A lightweight tag is just a 'ref' that points at that commit. You can force-create a new annotated tag on top of the old tag: git tag -a -f <tagname> <tagname> As of Git v1.8.2, you need to use --force to replace any tags

问题 What is the best 32bit hash function for relatively short strings? Strings are tag names that consist of English letters, numbers, spaces and some additional characters ( # , $ , . , ...). For example: Unit testing , C# 2.0 . I am looking for 'best' as in 'minimal collisions', performance is not important for my goals. 回答1: If performance isn't important, simply take a secure hash such as MD5 or SHA1, and truncate its output to 32 bits. This will give you a distribution of hash codes that's

问题 I'm looking for a simple Java snippet to remove empty tags from a (any) XML structure <xml> <field1>bla</field1> <field2></field2> <field3/> <structure1> <field4>bla</field4> <field5></field5> </structure1> </xml> should turn into; <xml> <field1>bla</field1> <structure1> <field4>bla</field4> </structure1> </xml> 回答1: I was wondering whether it would be easy to do this with the XOM library and gave it a try. It turned out to be quite easy: import nu.xom.*; import java.io.File; import java.io

问题 Is there a way to specify from the build in JUnit5 Runner of IntelliJ that only test methods with specific @Tag should be tested (or the opposite, that all tests except those with a specific @Tag, should be executed)? I know how to do it with maven, but is it possible with just the IntelliJ UI? Best regards, Dieter 回答1: With https://youtrack.jetbrains.com/issue/IDEA-163481 fixed, it is now possible since IJ 2018.1 -- for details see @Nicolau 's answer. 回答2: Now it is possible with Intellij

问题 I have created a sandbox git repository containing a few commits and a couple of tags, one lightweight and one annotated: > mkdir one; cd one; git init > touch a.txt; git add a.txt; git commit -m"a.txt" > touch b.txt; git add b.txt; git commit -m"b.txt" > git tag light > touch c.txt; git add c.txt; git commit -m"c.txt" > git tag -a annot -m"annot" I now create a second repository and fetch from the first: > mkdir two; cd two; git init > git remote add one <...>/one > git fetch one master

问题 In my page, there are several input and select tags. I use width:100%; to define their width, but the width in the browser is not 100% . I used the debug tool in chrome, and found there is also useragent stylesheet styles applied. How can I make the width 100%? 回答1: Demo Fiddle You should ideally separate style from content, so in your CSS include: input, select{ width:100%; box-sizing:border-box; } nb. demo fiddle without box-sizing set And you need to use box-sizing:border-box in order for