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Difference between single and double square brackets in Bash

I'm reading bash examples about if but some examples are written with single square brackets: 6 Answers ...
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What is the difference between “word-break: break-all” versus “word-wrap: break-word” in CSS

I am currently wondering what is the difference between the two. When I used both they seem to break the word if it is not fitting the container. But why did W3C made two ways to do it? ...
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How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?

So if I have to choose between a hash table or a prefix tree what are the discriminating factors that would lead me to choose one over the other. From my own naive point of view it seems as though using a trie has some extra overhead since it isn't stored as an array but that in terms of run time (a...
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Prevent users from submitting a form by hitting Enter

I have a survey on a website, and there seems to be some issues with the users hitting enter (I don't know why) and accidentally submitting the survey (form) without clicking the submit button. Is there a way to prevent this? ...
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How good is Java's UUID.randomUUID?

I know that randomized UUIDs have a very, very, very low probability for collision in theory, but I am wondering, in practice, how good Java's randomUUID() is in terms of not having collision? Does anybody have any experience to share? ...
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How to create id with AUTO_INCREMENT on Oracle?

It appears that there is no concept of AUTO_INCREMENT in Oracle, up until and including version 11g. 16 Answers ...
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Why use the INCLUDE clause when creating an index?

While studying for the 70-433 exam I noticed you can create a covering index in one of the following two ways. 8 Answers ...
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html (+css): denoting a preferred place for a line break

Let's say I have this text that I want to display in an HTML table cell: 9 Answers 9 ...
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How to perform better document version control on Excel files and SQL schema files

I am in charge of several Excel files and SQL schema files. How should I perform better document version control on these files? ...
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How do I disable right click on my web page?

Can I disable right click on my web page without using JavaScript? I ask this because most browsers allow user to disable JavaScript. ...