Currently I have an input box which will detect the URL and parse the data. So right now, I am using: The problem is, when I enter a URL like www.google.com, its not working. when I entered http://www.google.com, it is working. I am not very fluent in regular expressions. Can anyone help me?
For learning Angular 2, I am trying their tutorial. I am getting an error like this: I went through different questions and answers in SO but could not find out what an “Unhandled Promise Rejection” is. Can anyone simply explain me what it is and also what Error: spawn cmd ENOENT is, when it arises and what … Read more
Think of it like you’re just calling JavaScript functions. You can’t use a for loop where the arguments to a function call would go: See how the function tbody is being passed a for loop as an argument – leading to a syntax error. But you can make an array, and then pass that in as an argument: You can basically … Read more
Primitives are passed by value, and Objects are passed by “copy of a reference”. Specifically, when you pass an object (or array) you are (invisibly) passing a reference to that object, and it is possible to modify the contents of that object, but if you attempt to overwrite the reference it will not affect the copy of … Read more
So after a number of tries, I found it working. Please follow the order sequence it’s very important else it won’t work
Async arrow functions look like this: Async arrow functions look like this for a single argument passed to it: Async arrow functions look like this for multiple arguments passed to it: The anonymous form works as well: An async function declaration looks like this: Using async function in a callback: Using async method inside of a class:
The JSON you posted looks fine, however in your code, it is most likely not a JSON string anymore, but already a JavaScript object. This means, no more parsing is necessary. You can test this yourself, e.g. in Chrome’s console: JSON.parse() converts the input into a string. The toString() method of JavaScript objects by default returns [object Object], resulting … Read more
Heroku has a set of default buildpacks, used when it needs to detect the language of your app.In order to do that detection, it runs the bin/detect command of each of those default buildpacks, until one of them returns a 0 exit code. This is the command for the node buildpack.As you can see, it requires a package.json to … Read more
Async arrow functions look like this: Async arrow functions look like this for a single argument passed to it: Async arrow functions look like this for multiple arguments passed to it: The anonymous form works as well: An async function declaration looks like this: Using async function in a callback: Using async method inside of a class: