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Grouping functions (tapply, by, aggregate) and the *apply family
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10 Answers
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Active
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Where can I find the TypeScript version installed in Visual Studio?
... Visual Studio Command Prompt
Type tsc -v and hit Enter
Visual Studio 2017 versions 15.3 and above bind the TypeScript version to individual projects, as this answer points out:
Right click on the project node in Solution Explorer
Click Properties
Go to the TypeScript Build tab
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How to delete duplicate lines in a file without sorting it in Unix?
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300
awk '!seen[$0]++' file.txt
seen is an associative-array that Awk will pass every line of the f...
Javascript: negative lookbehind equivalent?
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Lookbehind Assertions got accepted into the ECMAScript specification in 2018.
Positive lookbehind usage:
console.log(
"$9.99 €8.47".match(/(?<=\$)\d+(\.\d*)?/) // Matches "9.99"
);
Negative lookbehind usage:
console.log(
"$9.99 €8.47".match(/(?<!\$)\d+(?:\.\d*)/)...
Places where JavaBeans are used?
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Nov 13 '09 at 13:36
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Liquibase lock - reasons?
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601
Sometimes if the update application is abruptly stopped, then the lock remains stuck.
Then run...
Reset select2 value and show placeholder
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edited Jan 24 '17 at 15:20
Hakan Fıstık
9,09888 gold badges5757 silver badges8686 bronze badges
answe...
Logging levels - Logback - rule-of-thumb to assign log levels
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edited Aug 9 '19 at 5:20
Chege
29544 silver badges88 bronze badges
answered Nov 5 '11 at 16:40
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HTML 5 Favicon - Support?
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The above covers IE up to IE 9. IE 11 accepts PNG favicons, however, IE 10 does not. Also IE 10 does not read conditional comments thus IE 10 won't show a favicon. With IE 11 and Edge available I don't see IE 10 in widespread use, so I ignore this browser.
For the rest of the browsers we are goin...