Here, we have concat the function name (fn.name) and the first argument of the function (args[0]) as a unique key just for the example. uniKey = fn.name+args[0] Next, we have an if statement to check if the result of the function is in the cache object or not. If the uniqu...
What does "object destructuring" mean and what is the result of a destructuring operation?Say you have an object with some properties:const person = { firstName: 'Tom', lastName: 'Cruise', actor: true, age: 57 }You can extract just some of the object properties and put them into ...
Currying is a core concept of functional programming and a useful tool for any developer's toolbelt. Example 1: let f = a => b => c => a+b+c; let result= f(1)(2)(3); console.log(result);//6 Example 2: <!DOCTYPE html>JS BinOneTwo<...
What is Server-sent Events in JavaScript? In JavaScript, server-sent events (SSE) enable the server to send data to the client. The client require to establish a connection with the server to get data from the server. The server-sent events are similar to the WebSocket as it also establis...
function():It is a function for checking any condition on filter() list. Return value:Resultant of filter() gives set of value/values with a list. Note:In JavaScript, the list and array are treated the same as both are automatically dynamic in JavaScript. JavaScript file can be saved with...
AdomdConnectionException This is usually a temporary error during hostname resolution and means that the local server did not receive a response from an authoritative server Advice on Connecting to an IP Camera using C# App? AES encrypt in Javascript and decrypt in C# AES Encryption issues (Paddin...
.pdb files in production environment? 'An operation was attempted on a nonexistent network connection' error 'bootstrap' is not a valid script name. The name must end in '.js'. 'Cannot implicitly convert 'System.TimeSpan' to 'System.DateTime' 'DayOfWeek' is not supported in LINQ to E...
This is a concept in the interface of ts. The interface of ts is "duck typing" or "structural subtyping", and type checking mainly focuses on the shape that values have. So let's get acquainted with the interface first, and then elicit the explanation of ?. ...
When I use crypto-js hash functions,console.log(PBKDF2hash)returns this weird data in console: { init: [Function], '$super': { init: [Function], toString: [Function], concat: [Function], clamp: [Function], clone: [Function],
Generally idea for using this technique on separate files (aka modules) which later get concatenated. Caveat here is that files supposed to be concatenated by tools which put new file at new line (which is anyway common behavior for most of concat tools). In that case using!will help to ...