Document directory
I. What is JavaScript?
Ii. Start of JavaScript programming
Iii. Implementation basics of JavaScript
Iv. Summary of this Chapter
From the beginning of college, I began to learn how to create web pages and began to access
Original: Using JavaScript in Swift projects:building a Markdown to HTML Editor
GABRIEL Theodoropoulos
Translated by: Kmyhy
Always wanted to write an essay. about how Swift and Javascript are combined to build powerful apps that support
ArticleDirectory
Javascript Introduction
How to Implement Javascript
Where to place Javascript
Javascript statements
Javascript Variables
Javascript Operators
Javascript branch statement
Javascript message box
Document directory
1. JavaScript scope chain
2. In the function body, the priority of local variables is higher than that of global variables with the same name.
3. JavaScript does not have block-level scope.
4. variables declared in the
In javascript, it is very necessary to understand the scope of variables and improve variables. It seems simple, but it is not what you think. You need to understand some important details. The scope of a variable indicates the context of the
Original: Using JavaScript in Swift projects:building a Markdown to HTML Editor
GABRIEL Theodoropoulos
Translated by: Kmyhy
Always wanted to write an article about how Swift and Javascript can be combined to build a powerful App that
JavaScript BasicsJavaScript is a scripting language that belongs to the web!JavaScript is used by millions of of pages to improve design, verify forms, detect browsers, create cookies, and more.JavaScript is the most popular scripting language on
Variable scope"The scope of a variable represents the context in which the variable exists. It specifies which variables you can access and whether you have permission to access a variable. ”
Variable scopes are divided into local scope and global
A variable is a container for storing information.Instancevar x=2;var y=3;var Z=x+y;It's like algebra.X=2y=3z=x+yIn algebra, we use letters (such as x) to hold values (such as 2).By the above expression Z=x+y, we can calculate the value of Z as 5.In
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.