The label (label) in JavaScript is an identifier. A label can have the same name as a variable, which is a separate syntactic element (neither a variable nor a type), and its function is to identify the "labeled statement"
Label declarationA label
Goto: Goto is still a reserved word in Java, but it is not used in the language, and Java has no goto.
Definition of reserved words:
Reserved words (reserved word), which are words that have already been defined in a high-level
1th Chapter Essence
Some of the features of JavaScript feature a lot more trouble than they are worth. Some of these features are because the specification is so imperfect that it can cause portability problems; Some features can lead to the
ArticleDirectory
Object
Array
Define functions
Global Object
Insert time of semicolon
Reserved Words
Reprinted: http://svza.blogspot.com/2007/03/javascript_09.html here format may look good (this seems to have. Flip.
This article introduces the JavaScript language to professional programmers. It is a small language.
This article introduces the JavaScript language to professional programmers. It is a small language. If you are familiar with other programming
Introduction
This article introduces the JavaScript language to professional programmers. It is a small language. If you are familiar with other programming languages, this article is not that hard to understand.
JavaScript is not Java. They are two
This study focuses on basic JavaScript syntax, data structureWhether it is a traditional programming language or a scripting language, there are basic elements such as data types, constants and variables, operators, expressions, comment statements,
JavaScript Standard
All modern browsers have fully supported ES5 (ECMAScript 5).
JavaScript reserved Keywords (keyword)
A reserved keyword (identifier) for Javascript cannot be used as a variable, label, or function name. Some reserved keywords
JavaScript reserved Keywords
In JavaScript, some identifiers are reserved keywords and cannot be used as variable names or function names. JavaScript Standard
All modern browsers fully support ECMAScript 3 (Es3,javascript's third edition, starting
Beauty would fade but Love would stay.
ECMA-262 describes all the basic concepts of JavaScript through ECMAScript. Before we get to the basics of how JavaScript works, let's review the history of ECMAScript: 1) What does JavaScript have to
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