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Can I have an IF block in DOS batch file?

...t, and the opening parenthesis. I am setting @echo off to keep from seeing all of the statements printed to the console as they execute, and instead just see the output of those that specifically begin with echo. I'm using the built-in ERRORLEVEL variable just as a test. Read more here ...
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Can I set max_retries for requests.request?

..., predating the release of requests 1.2.1: The requests library doesn't really make this configurable, nor does it intend to (see this pull request). Currently (requests 1.1), the retries count is set to 0. If you really want to set it to a higher value, you'll have to set this globally: import re...
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Unioning two tables with different number of columns

... I realized that this solution also works without having to list all the columns. So instead of Select Col1, Col2, Col3, Null as Col4, Null as Col5 from Table2, one can also do, Select *, Null as Col4, Null as Col5 from Table2. – Pratik Patel Sep 20 '...
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Ioc/DI - Why do I have to reference all layers/assemblies in application's entry point?

...ple in unit testing. However, in a loosely coupled application, by moving all the references to the Composition Root, the dependency graph is severely flattened: As illustrated by the green color, it's now possible to reuse Library C without dragging along any unwanted dependencies. However, al...
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BaseException.message deprecated in Python 2.6

...of the exception hierarchy. Provides an 'args' attribute that contains all arguments passed to the constructor. Suggested practice, though, is that only a single string argument be passed to the constructor.""" __str__ and __repr__ are already implemented in a meaningful way, especiall...
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How to export all collections in MongoDB?

I want to export all collections in MongoDB by the command: 26 Answers 26 ...
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HTML anchor link - href and onclick both?

...href attribute, I'd return "-1" to prevent the default action, which is usually the browser jumping tot he top of the page, or sometimes I'd just not return anything. Lately I've had to revise all those pages as @Amber advised... to specifically return false, if I don't want the page to jump. ...
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How To Check If A Key in **kwargs Exists?

...efix variable. If it is given, then its value is being used. This is generally a compact and readable recipe for writing wrappers for any kind of function: Always just pass-through arguments you don't understand, and don't even know if they exist. If you always pass through *args and **kwargs you m...
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TypeScript typed array usage

... You have an error in your syntax here: this._possessions = new Thing[100](); This doesn't create an "array of things". To create an array of things, you can simply use the array literal expression: this._possessions = []; Of the array constructor if you want to se...
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Get original URL referer with PHP?

I am using $_SERVER['HTTP_REFERER']; to get the referer Url. It works as expected until the user clicks another page and the referer changes to the last page. ...