sort out the notes from a year ago, and see a piece of code: (>=>) :: Monad m => (a -> m b) -> (b -> m c) -> (a -> m c) f >=> g = x -> f x >>= g is just written differently ( > = > and @ > ). ther...
suppose I have an integer x , and I want to judge whether the integer is in the interval [1, limit] . In Haskell, I can think of two schemes: x > = 1 and x < = limit elem x [1..limit] I used the Profiling, code of GCI as follows: I w...
how does the following filters call padDate in method and pass a value? filters: { formatDate: function(value) { let _this = this; let date = new Date(value); let year = date.getFullYear(); let month = padDate(date.g...
MEDU1778421 FEJ7296886 FCIU2741867 FEJ7296887 GLDU9472098 FEJ7296888 I want to match the following numbers and replace them with spaces for example, how to match letters and spaces MEDU1778421 FCIU2741867 GLDU9472098 ...
html <div id="app"> <div id="c">< div> < div> <script id="tpl" type="text template"> <div style="display: inline-block;"> <input type="radio...
6.x is used in the angular cli project that accidentally installed 7.x. I want to uninstall and reinstall 6.x cli, but use npm uninstall-g @ angular cli to report an error npm ERR! Unexpected end of JSON input while parsing near ....2","de...
how to change the following array array(2) { [0]=> array(2) { [0]=> string(20) "18052910110100956524" [1]=> string(12) "102101016056" } [1]=> array(1) { [0]=> string(12) "1011015...