how is it convenient to define a slice, if you want to determine whether the key is in the slice? The code is as follows: func main () { urls := []string{ "https: www.aaa.com", "https: www.bbb.com", "https: www...
function ArrayOf(){ return [].slice.call(arguments); } this function implements the conversion of arguments to an array. but I have a question: isn t this call () method the first parameter that points to the this object? Why is it that in this e...
Hello, everyone. Recently, the mall project run by the company needs to do data analysis, because the order data in the background (not just orders) are stored in mysql, so I want to collect data to mongodb or elasticsearch for data analysis. At present,...
question: how can other event listeners or functions get this Dom state after an event listener method changes the Dom state (such as hiding)? usage scenarios: jquery, vue ...
as shown above ...
"description ": there has always been a habit of deleting the development branch after the PR merger (sometimes by yourself, sometimes by someone else). Then run git remote prune origin locally without any hints after running, and it doesn t take ef...
when developing iOS applications, how do I use the Instruments tool to monitor how FPS, locates to the code that causes the problem through the exception of FPS? ...