30秒学会 JavaScript 片段 – Typechecking objects with Proxy in JavaScript
A while back, I was working on a project where some objects had rigid structure requirements. As I w...
A while back, I was working on a project where some objects had rigid structure requirements. As I w...
A Stream is an abstract interface for working with streaming data in Node.js. It is designed to supp...
JavaScript’s negation operator (!) is a unary operator, used to invert the truth value of its ...
To determine if an object is an array, you can either use Array.isArray() or the instanceof operator...
JavaScript’s built-in Boolean is one of those things I find myself suggesting in code reviews ...
作用:检查给定的参数是否是 stream。 实现思路:首先检查是否是 null,如果不是的话再使用 typeof 检查是否中 object,并且其属性 pipe 是否是 function 类型。
Returns the first defined, non-null argument. Use Array.prototype.find() and Array.prototype.include...
Returns the native type of a value. Return ‘undefined’ or ‘null’ if the value is undefined or null. ...
Returns a customized coalesce function that returns the first argument that returns true from the pr...
Compares two objects to determine if the first one contains equivalent property values to the second...