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how to get the current working directory's absolute path from irb

...ing Ruby on Windows though I don't know if that should make a difference. All I want to do is get the current working directory's absolute path. Is this possible from irb? Apparently from a script it's possible using File.expand_path(__FILE__) ...
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Regex lookahead, lookbehind and atomic groups

...ely follow, and stop as backtracking is disabled A non-atomic group will allow backtracking; if subsequent matching ahead fails, it will backtrack and use alternative patterns until a match for the entire expression is found or all possibilities are exhausted. (foo|foot)s applied to foots will: ...
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Installing Java 7 on Ubuntu

to install java I have always used the classic way from the terminal. I would like to install java manually. I placed the folder of the JDK on the desk and I set environment variables (PATH, CLASSPATH and JAVA_HOME). From the terminal, if I type java -version I get printed ...
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Stop Mongoose from creating _id property for sub-document array items

If you have subdocument arrays, Mongoose automatically creates ids for each one. Example: 6 Answers ...
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Find which version of package is installed with pip

..., is it possible to figure out which version of a package is currently installed? 15 Answers ...
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Characters allowed in a URL

... The characters allowed in a URI are either reserved or unreserved (or a percent character as part of a percent-encoding) http://en.wikipedia.org/wiki/Percent-encoding#Types_of_URI_characters says these are RFC 3986 unreserved characters ...
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Does this app use the Advertising Identifier (IDFA)? - AdMob 6.8.0

...it Ad Tracking. Including Limit Ad Tracking. This is what the last box is all about. So you must check the that box if you use AdMob. If you use other SDK I strongly recommend checking if they respect the guidelines as well. Since I run only ads (Google AdMob), I checked the first (Serve ads...) a...
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What is the most efficient way to deep clone an object in JavaScript?

... Native deep cloning It's called "structured cloning", works experimentally in Node 11 and later, and hopefully will land in browsers. See this answer for more details. Fast cloning with data loss - JSON.parse/stringify If you do not use Dates, funct...
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Download the Android SDK components for offline install

Is it possible to download the Android SDK components for offline install without using the SDK Manager? The problem is I am behind a firewall which I have no control over and both sites download URLs seem to be blocked (throws a connection refused exception) ...
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How to drop all tables in a SQL Server database?

...y tables. I found that code that works and does everything you try (delete all tables from your database): DECLARE @Sql NVARCHAR(500) DECLARE @Cursor CURSOR SET @Cursor = CURSOR FAST_FORWARD FOR SELECT DISTINCT sql = 'ALTER TABLE [' + tc2.TABLE_SCHEMA + '].[' + tc2.TABLE_NAME + '] DROP [' + rc1.C...