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Get last element of Stream/List in a one-liner

... Goetz makes a point, further the API documentation states that reduce("", String::concat) is an inefficient but correct solution for string concatenation, which implies maintenance of the encounter order.The intention is well-known,the documentation has to catch up. – Holger ...
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Should I use tag for icons instead of ? [closed]

...ut no textual equivalent is available. Setting this attribute to the empty string indicates that this image is not a key part of the content; non-visual browsers may omit it from rendering." – George Mauer Jul 30 '15 at 17:37 ...
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How to play a local video with Swift?

...e provided solution did not work for me. private func playVideo(from file:String) { let file = file.components(separatedBy: ".") guard let path = Bundle.main.path(forResource: file[0], ofType:file[1]) else { debugPrint( "\(file.joined(separator: ".")) not found") return ...
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Setting the correct encoding when piping stdout in Python

... Encoding / decoding every string excplictly is bound to cause bugs when a encode or decode call is missing or added once to much somewhere. The output encoding can be set when output is a terminal, so it can be set when output is not a terminal. The...
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How to use sed to replace only the first occurrence in a file?

...o' with 'bar' in the first matching line only. Due to use of ANSI C-quoted strings ($'...') to provide the sample input lines, bash, ksh, or zsh is assumed as the shell. GNU sed only: Ben Hoffstein's anwswer shows us that GNU provides an extension to the POSIX specification for sed that allows th...
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Why is reading lines from stdin much slower in C++ than Python?

I wanted to compare reading lines of string input from stdin using Python and C++ and was shocked to see my C++ code run an order of magnitude slower than the equivalent Python code. Since my C++ is rusty and I'm not yet an expert Pythonista, please tell me if I'm doing something wrong or if I'm mis...
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Mean per group in a data.frame [duplicate]

... 2 67 43 Cat 3 45 32 ', header = TRUE, stringsAsFactors = FALSE, na.strings = 'NA') Rate1.mean <- with(my.data, ave(Rate1, Month, FUN = function(x) mean(x, na.rm = TRUE))) Rate2.mean <- with(my.data, ave(Rate2, Month, FUN = function(x) mean(x, na.rm = TRUE)...
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Using “like” wildcard in prepared statement

... You need to set it in the value itself, not in the prepared statement SQL string. So, this should do for a prefix-match: notes = notes .replace("!", "!!") .replace("%", "!%") .replace("_", "!_") .replace("[", "!["); PreparedStatement pstmt = con.prepareStatement( "SELECT ...
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Check orientation on Android phone

...e system is already determining orientation – KrustyGString Sep 29 '15 at 13:59 1 Best answer for...
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onchange event on input type=range is not triggering in firefox while dragging

... In other browsers, the "change" event is effectively silenced (to prevent extra and sometimes not-readily-apparent events from firing). In addition, the "input" event fires its listener only when the range/slider's value changes. For some browsers (e.g. Firefox) this occurs because the listener is ...