javascript if statement string

One way to "make something happen" is to evaluate an expression with a side effect. Injected assignments and function calls these expressions with side-effects can be used as separate statements, and this expression is also called an expression

1. Statements and expressionsThere are differences between expressions and statements in JavaScript. An expression produces a value that can be placed anywhere a value is needed, for example, as a parameter to a function call. Each of the following

ArticleDirectory Javascript Introduction How to Implement Javascript Where to place Javascript Javascript statements Javascript Variables Javascript Operators Javascript branch statement Javascript message box

In front of you to explain a multi-choice ElseIf statement, although this statement can make a variety of judgments, but when used, need to write a lot of if statements, to our program readability inconvenience, in order to avoid the IF statement

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

Directory1 History 2 clarifying misunderstandings 3 basic concepts 4 features 5 different from Java 6 development toolsHistoryProbably in 1992, a company called Nombas began developing an embedded scripting language called C-minus (C-minus-minus, or

JavaScript all things in are objects: strings, numbers, arrays, functions ... In addition, JavaScript allows custom objects to be customized.JavaScript objectsJavaScript provides multiple built-in objects, such as String, Date, Array, and so on.

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

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

Basic JavaScript flow control statement usage, javascript statement Part 3: Process Control statements JavaScript code is the writing position: JavaScript code should be written in . Or as an external reference Use a semicolon to end each