Noun convention In general, there are the following noun conventions. Promise (lowercase initials) object refers to “Promise instance object” Promise initial capitalization and singular form for “Promise constructor” Promises is capitalized and pluralized to refer to the “Promises specification” So…
Front-end engineers know that JavaScript has basic exception handling capabilities. We can throw new Error(), and the browser will also throw an exception when we call the API and make an error. But it is estimated that most front-end engineers have not considered…
In this article, I will discuss the approach used when building and constructing large React applications. one of the best features of React is how it gets out of the way and is hardly descriptive in terms of file structure.…
There is no doubt that React has revolutionized the way we build user interfaces. It is easy to learn and greatly facilitates the creation of reusable components to provide a consistent look to your website. However, because React is only…
In 30 minutes you will understand what a regular expression is and have some basic understanding of it so that you can use it in your own programs or web pages. How to use this tutorial Don’t be intimidated by…
Because I will use JIRA in my work, I want to implement a similar function and learn about drag and drop in H5 by the way. It doesn’t support drag and drop to change the order, which feels a bit…
Most computer languages have one and only one value for “nothing”, such as NULL in C, null in Java, None in Python, and nil in Ruby. What is strange is that JavaScript has two values for “nothing”: undefined and null.…
When we write JS, sometimes the error “Uncaught SyntaxError: missing ) after argument list” is reported, some friends are overwhelmed and do not know where the error is? Literal translation means: syntax error: missing after parameter list ) Isn’t that…
Introduction JavaScript is an amazing language. I love its flexibility: just do things the way you like: change variable types, dynamically add methods or properties to objects, use operators for different variable types, etc. However, dynamism comes at a price,…
