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Do browsers send “\r\n” or “\n” or does it depend on the browser?

...from an HTML working group about the issue.) Here's a quote from the HTTP/1.1 spec about message headers: The line terminator for message-header fields is the sequence CRLF. However, we recommend that applications, when parsing such headers, recognize a single LF as a line terminator and ignore...
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How to get the next auto-increment id in mysql

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How to declare a type as nullable in TypeScript?

...ke the field optional which is different from nullable. interface Employee1 { name: string; salary: number; } var a: Employee1 = { name: 'Bob', salary: 40000 }; // OK var b: Employee1 = { name: 'Bob' }; // Not OK, you must have 'salary' var c: Employee1 = { name: 'Bob', salary: undefined }...
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How to style a div to be a responsive square? [duplicate]

... 190 To achieve what you are looking for you can use the viewport-percentage length vw. Here is a ...
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Nearest neighbors in high-dimensional data?

...on how to find the nearest neighbors for a given vector. My vector is now 21 dimensions and before I proceed further, because I am not from the domain of Machine Learning nor Math, I am beginning to ask myself some fundamental questions: ...
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How do I center floated elements?

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How do I use cascade delete with SQL Server?

I have 2 tables: T1 and T2, they are existing tables with data. We have a one to many relationship between T1 and T2. How do I alter the table definitions to perform cascading delete in SQL Server when a record from T1 is deleted, all associated records in T2 also deleted. ...
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Check if an array contains any element of another array in JavaScript

... Vanilla JS ES2016: const found = arr1.some(r=> arr2.includes(r)) ES6: const found = arr1.some(r=> arr2.indexOf(r) >= 0) How it works some(..) checks each element of the array against a test function and returns true if any e...
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Testing Abstract Classes

... 241 Unit testing of abstract classes doesn't necessary mean testing the interface, as abstract class...
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How do I create an HTML table with a fixed/frozen left column and a scrollable body?

...table { border-collapse: separate; border-spacing: 0; border-top: 1px solid grey; } td, th { margin: 0; border: 1px solid grey; white-space: nowrap; border-top-width: 0px; } div { width: 500px; overflow-x: scroll; margin-left: 5em; overflow-y: visible; pad...