node js console debug

Node. js console. log method instructions, node. jsconsole. log Method description: Print characters to the standard output stream and end with a line break. Syntax: Copy codeThe Code is as follows:Console. log ([data], [...]) Receiving parameters: Console. log accepts

The use of the console. dir method in node. js is described as follows: node. jsconsole. dir Method description: Pass obj as a parameter to util. inspect and execute the command to print the returned result to stdout. This function ignores any custom inspect () function objects. Syntax: Copy codeThe Code is as fol

: Copy CodeThat's the way it is in chrome. It's basically the same in Firebug.8, Console.traceThis command is used to keep track of a function's call trajectory, which is helpful if you add console.trace to the function you want to test, of course, our great IE still doesn't support it.9, Console.assertThis command is used to determine whether an ex

This article mainly introduces the JS Debugging Tool console command in detail, the need for friends can refer to the nextI. Commands to display informationCopy CodeThe code is as follows:The most common is the console.log.Two: Placeholder console The above concentration supports printf placeholder format, supported placeholders are: characters (%s), integers (%d

Write at the beginning: In fact, I was thinking about whether to write this thing, because this thing is really not difficult, but why there are so many people ask, they ask not how to use the console, but do not know the console can do, they also know that there are console.log and other things, But they don't know why they use such a long string instead of the alert output message. There was enough alert

This article mainly introduces the JS Debugging Tool console command in detail, the need for friends can refer to the nextI. Commands to display informationCopy CodeThe code is as follows:The most common is the console.log.Two: PlaceholderConsole The above concentration supports printf placeholder format, supported placeholders are: characters (%s), integers (%d or%i), floating-point numbers (%f), and objec

Because to get an automatic landing tool for a webpage, it is necessary to use JS for the elements of this page to select and manipulate, complex JS selection if directly in the mind is prone to error, and once the error is not good to judge the cause of the error.The console feature of the developer tools in the browser provides us with a feature that is as conv

It was not known that the console was so powerful that it was able to count time and analyze performance bottlenecks.Original link: http://www.jb51.net/article/56504.htmI. Commands to display informationCopy CodeThe code is as follows:The most common is the console.log.Two: PlaceholderConsole The above concentration supports printf placeholder format, supported placeholders are: characters (%s), integers (%d or%i), floating-point numbers (%f), and obj

enter: > Node > If you get a prompt and the system does not warn you that "Sorry, there is no such command", congratulations, the installation is successful. If you still want to observe the directory structure of nodejs, you will also find that it is much simpler to upload a node.exe file. Is there anything simpler than this? Ah? Do you have an npm. cmd batch file and node_modules folder? That, we can ignore it for the moment. You can delete them wi