It looks like you might not have defined a start script in your package.json file or your project does not contain a server.js file. If there is a server.js file in the root of your package, then npm will default the start command to node server.js. You could either change the name of your application script to server.js or add the following to … Read more
Children inherit opacity. It’d be weird and inconvenient if they didn’t. You can use a translucent PNG file for your background image, or use an RGBa (a for alpha) color for your background color. Example, 50% faded black background:
No, there’s no direct not operator. At least not the way you hope for. You can use a zero-width negative lookahead, however: The (?!…) part means “only match if the text following (hence: lookahead) this doesn’t (hence: negative) match this. But it doesn’t actually consume the characters it matches (hence: zero-width). There are actually 4 combinations of lookarounds with 2 axes: lookbehind / lookahead : … Read more
Yes, assuming your implementation includes the for…of feature introduced in ECMAScript 2015 (the “Harmony” release)… which is a pretty safe assumption these days. It works like this: Or better yet, since ECMAScript 2015 also provides block-scoped variables: (The variable s is different on each iteration, but can still be declared const inside the loop body as long as it isn’t modified there.) A … Read more
I just placed it in a different folder and it worked.
When you have an assignment operator in a statement, the LHS of the operator must be something the language calls an lvalue. If the LHS of the operator does not evaluate to an lvalue, the value from the RHS cannot be assigned to the LHS. You cannot use: since 10 does not evaluate to an lvalue. You can use: since i does … Read more
From the help file about $ (See ?”$”) you can read: $ is only valid for recursive objects, and is only discussed in the section below on recursive objects. Now, let’s check whether x is recursive A recursive object has a list-like structure. A vector is not recursive, it is an atomic object instead, let’s check Therefore you get an … Read more
(Note: starting Oct. 2020, any new repository is created with the default branch main, not master. And you can rename existing repository default branch from master to main.The rest of this 2014 answer has been updated to use “main“) (The following assumes github.com itself is not down, as eri0o points out in the comments: see www.githubstatus.com to be sure) If the GitHub repo has seen new commits pushed to it, while … Read more
Step 1: $ npm cache clean –force Step 2: Delete node_modules by $ rm -rf node_modules (rmdir /S /Q node_modules in windows) folder or delete it manually by going into the directory and right-click > delete / move to trash. If are not updating your packages you can delete the package-lock.json file too. Step 3: npm install To start again, $ npm start This worked for me. … Read more
This works in my facebook profile tab-app Link test Facebook edits this link and adds “target” depending on the href-url specified. If it is an internal facebook target, it targets the current frame, if it is and external url, it targets blank. Please just try the link above and see if it works for you … Read more