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raw vs. html_safe vs. h to unescape html

...n that, but it's basically it). This way, you can return HTML Safe strings from helpers or models at will. h can only be used from within a controller or view, since it's from a helper. It will force the output to be escaped. It's not really deprecated, but you most likely won't use it anymore: the...
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Get unique values from a list in python [duplicate]

I want to get the unique values from the following list: 30 Answers 30 ...
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Convert UTC date time to local date time

From the server I get a datetime variable in this format: 6/29/2011 4:52:48 PM and it is in UTC time. I want to convert it to the current user’s browser time using JavaScript. ...
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How can I concatenate regex literals in JavaScript?

... Where are you getting expression_one from? Do you mean regex1? – TallOrderDev May 7 '19 at 2:11 ...
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How to convert std::string to NSString?

...he documentation says: /* User-dependent encoding who value is derived from user's default language and potentially other factors. The use of this encoding might sometimes be needed when interpreting user documents with unknown encodings, in the absence of other hints. This encoding should be u...
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How to commit no change and new message?

...h temporary workflow artifacts and make it hard to separate code revisions from ephemeral cruft. Other strategies to add metadata to a commit tree include: Separate branches or lightweight tags that always point to a commit of a particular status (e.g. "last accepted commit" or "current staging co...
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Express.js - app.listen vs server.listen

...fig.port, function() { console.log('Https App started'); }); The app from express will return http server only, you cannot set it in express, so you will need to use the https server command var express = require('express'); var app = express(); app.listen(1234); ...
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Why does this CSS margin-top style not work?

... each other because their margins are equal. Here are the relevant points from the W3C spec: 8.3.1 Collapsing margins In CSS, the adjoining margins of two or more boxes (which might or might not be siblings) can combine to form a single margin. Margins that combine this way are said to col...
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What command opens Ruby's REPL?

...ram named irb, but since it is just a Ruby library, it can also be invoked from Ruby code and not just from the shell. On Rubinius, IRb can also be invoked by just calling the rbx program without arguments, just like in CPython. There is also a very nice REPL called Pry, which installs a program na...
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How to convert an image to base64 encoding?

Can you please guide me how can I convert an image from a URL to base64 encoding? 9 Answers ...