w3c

Alternative for innerHTML?

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The recommended way is through DOM manipulation, but it can be quite verbose. For example: // <p>Hello, <b>World</b>!</p> var para = document.createElement(‘p’); para.appendChild(document.createTextNode(‘Hello, ‘)); // <b> var b = document.createElement(‘b’); b.appendChild(document.createTextNode(‘World’); para.appendChild(b); para.appendChild(document.createTextNode(‘!’)); // Do something with the para element, add it to the document, etc. EDIT In response to your edit, in order to … Read more

What can service workers do that web workers cannot?

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Buksy’s answer is correct but in my opinion it does not answer the original question, namely: “What can service workers do that web workers cannot? Or vice versa?” There are fundamental differences in their lifecycle and the number of instances per origin you can have. In short: | Web Workers | Service Workers | |————–|————–|——————| … Read more

Can a CSS pixel be a fraction?

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Yes, you can specify fractional pixels. As this has been part of CSS since the very first version, it should be well supported by any browser that supports CSS at all. Reference: CSS 2.1: 4.3.2 Lengths “The format of a length value (denoted by <length> in this specification) is a <number> (with or without a … Read more

The package org.w3c.dom is accessible from more than one module: , java.xml

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I had a similar issue because of a transitive xml-apis dependency. I resolved it using a Maven exclusion: <dependency> <groupId>org.apache.xmlgraphics</groupId> <artifactId>fop</artifactId> <version>0.95</version> <exclusions> <exclusion> <groupId>xml-apis</groupId> <artifactId>xml-apis</artifactId> </exclusion> </exclusions> </dependency> Another dependency that just causes trouble and I don’t have a solution other than removing it is this one: <dependency> <groupId>com.oracle.database.xml</groupId> <artifactId>xmlparserv2</artifactId> <version>${oracle.version}</version> </dependency> Use mvn … Read more

vertical alignment of text element in SVG

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According to SVG spec, alignment-baseline only applies to <tspan>, <textPath>, <tref> and <altGlyph>. My understanding is that it is used to offset those from the <text> object above them. I think what you are looking for is dominant-baseline. Possible values of dominant-baseline are: auto | use-script | no-change | reset-size | ideographic | alphabetic | … Read more

How to unquote a urlencoded unicode string in python?

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%uXXXX is a non-standard encoding scheme that has been rejected by the w3c, despite the fact that an implementation continues to live on in JavaScript land. The more common technique seems to be to UTF-8 encode the string and then % escape the resulting bytes using %XX. This scheme is supported by urllib.unquote: >>> urllib2.unquote(“%0a”) … Read more

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