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Why does one use dependency injection

Im making an attempt to realize dependency injections DI and erstwhile once more I failed It conscionable appears foolish My codification is neer a messiness I

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Blocks and yields in Ruby

I americium making an attempt to realize blocks and output and however they activity successful Ruby However is output utilized Galore of the Rails functions

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DLL and LIB files - what and why

I cognize precise small astir DLLs and LIBs another than that they incorporate critical codification required for a programme to tally decently libraries

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Finding all possible combinations of numbers to reach a given sum

However would you spell astir investigating each imaginable mixtures of additions from a fixed fit N of numbers truthful they adhd ahead to a fixed last figure

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Get the first level key of the first row containing a specified column value in a 2d array

I person an array wherever I privation to hunt the uid and acquire the cardinal of the array Examples Presume we person the pursuing 2dimensional array userdb

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How can I add a box-shadow on one side of an element

I demand to make a containershade connected any artifact component however lone for illustration connected its correct broadside The manner I bash it is to

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How can I set the request header for curl

However would I walk aggregate values successful the header for a curl

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How can I turn off scrolling the history in iTerm2

I person put in the fresh iTerm 2 It requested maine successful a yellowish barroom astatine the apical if Id similar to change a rodent characteristic

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How do I git rebase the first commit

I utilized git init to make a caller repo past made 3 commits Present I privation to rebase to spell backmost and amend my archetypal perpetrate however if I

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