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Sticky and NON-Sticky sessions

...A, B and C behind the load balancer, it is possible that www.mywebsite.com/index.jsp is served from server A, www.mywebsite.com/login.jsp is served from server B and www.mywebsite.com/accoutdetails.php are served from server C. Now, if the requests are being served from (physically) 3 different ser...
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How do I replace NA values with zeros in an R dataframe?

...ring of other helpful tidyverse replacement approaches Locationally: index mutate_at(c(5:10), ~replace(., is.na(.), 0)) direct reference mutate_at(vars(var5:var10), ~replace(., is.na(.), 0)) fixed match mutate_at(vars(contains("1")), ~replace(., is.na(.), 0)) or in place of contains(), ...
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How can I repeat a character in Bash?

... '/dev/null' on the following # line with a prefix path to which a running index starting with 1 will # be appended for each test run; e.g., outFilePrefix='outfile', which # will produce outfile1, outfile2, ... outFilePrefix=/dev/null { outFile=$outFilePrefix ndx=0 title '[M, P] printf %.s=...
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What is the HEAD in git?

...n our repository. Now, this has to do with our repository, not our staging index, or our working directory. Another way to think of it is the last state of our repository or what was last checked out, and because it's where the repository left off or the last state, you can also say that the HEAD ...
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What does the “Just” syntax mean in Haskell?

...er functions that are meant to return Natural numbers (for example, String.indexOf - when a substring is not found, the returned index is commonly designed to be negative) return a special value (pointer): NULL or some such silently return without doing anything: for example, lend could be written t...
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MVC Razor view nested foreach's model

...or() loop in place of your foreach() loops. Something like: @for(var themeIndex = 0; themeIndex < Model.Theme.Count(); themeIndex++) { @Html.LabelFor(model => model.Theme[themeIndex]) @for(var productIndex=0; productIndex < Model.Theme[themeIndex].Products.Count(); productIndex++) ...
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Why not inherit from List?

...o expose the list as an IList<T> if you need any consumer to have an indexed list. This let's you change the implementation within a class later on. Microsoft made Collection<T> very generic because it is a generic concept... the name says it all; it is just a collection. There are more ...
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Should I use SVN or Git? [closed]

...s for a work in progress, you will take advantage of the Git staging area (index) to commit only what you need, stash the rest, and move on on another branch. if you need offline development... well with Git you are always "online", with your own local repository, whatever the workflow you want to f...
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Are there other whitespace codes like &nbsp for half-spaces, em-spaces, en-spaces etc useful in HTML

... There are also ZERO WIDTH JOINER fileformat.info/info/unicode/char/200d/index.htm and ZERO WIDTH NON JOINER that I tend to use more often than the zero-width spaces. – Reb.Cabin May 15 '18 at 22:11 ...
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How should I choose an authentication library for CodeIgniter? [closed]

...t hook into CI's validation system Kinda unintuitive status (role) system (indexes upside down - impractical) Uses potentially unsafe sha1 hashing Fresh Powered Pros Small footprint (6 files) Cons Lacks a lot of essential features. Dealbreaker! Everything is hard-coded. Dealbreaker! Redux / ...