Read the JavaScript authoritative guide (sixth Edition) Notes (chapter fifth)

StatementAn expression is a phrase in JavaScript, and the statement is a JavaScript whole sentence or command. Use a period to end to separate statements. An expression evaluates a value, but the statement is used to execute to make something happen.

JavaScript's regular also has a single-line mode.

The regular expression was first implemented by Ken Thompson in his improved QED editor in 1970, the simplest meta-character in the regular "." At the time, the match is any character except for the line break: "." is a regular expression

Built-in objects for JavaScript

Built-in objects in JavaScript typically have datetime date () objects, arrays of Arra (), string strings.The Date object is generally used to get and modify the current datetime, etc., we first declare the Date object, and then call the function in

JavaScript base null-to-character String ()

Town Field Poem:The Pure Heart sentiment wisdom language, does not have the world name and the benefit. Learn water under the hundred rivers, give up arrogant slow meaning.Learn to have a small return to feed root, willing to cast a conscience blog.

Considerations for JavaScript language learning

javascript: Browser Object-based event-driven scripting language consists of: Javascript:ecmascript (ES) DOM Document Object model BOM Browser object model, three componentsThree ways to use JS 1. HTML tags embedded Js: Point me!!! not recommended

JavaScript base output normal string in body document.write

Town Field Poem:The Pure Heart sentiment wisdom language, does not have the world name and the benefit. Learn water under the hundred rivers, give up arrogant slow meaning.Learn to have a small return to feed root, willing to cast a conscience blog.

Use JavaScript to print out the number of Fibonacci (without using global variables)

6 basic topics from Uncle Tom's blog: This is the 4th question- print the Fibonacci number using JavaScript (without global variables)Key to solving problems:1, the Law of Fibonacci series2. RecursionThe law of solving the 1:fibonacci sequence of

Three ways to declare global variables based on javascript

This article goes from the Script house: in the declaration of global variables are mainly divided into explicit declarations or implicit declarations are described below respectively.Declaration Method

2017 top-of-the-class framework and themes to learn JavaScript

The popularity of JavaScript has facilitated the development of a very active ecosystem of related technologies, frameworks and libraries. The diversity and dynamism of the entire biosphere has become more and more confusing for many people. What

Splice () method for detailed JavaScript

from: splice () method in JavaScript is a strong array method that has many uses.The main purpose of splice () is to insert items into the middle of the array.There are 3 ways of doing this:Delete--You can delete any

Javascript decimals reserved 2-bit

1. String Intercept methodfunction Get (){var s = 22.127456 + "";var str = s.substring (0,s.indexof (".") + 3);alert (str);}2. Regular expression effect is good3. Enlarge rounding, reduce restore, keep decimals (recommended: This way generally

JavaScript Concise tutorial (2) string

The escape character \ can escape many characters, such as \ n for newline, \ t for tabs, and the character \ itself to be escaped, so \ \ is the character that \ \.ASCII characters can be #形式的十六进制表示 in \x#, for example:[JavaScript]Plain Text view

The role of JavaScript, JS Common Three kinds of dialog box; = = and = = = difference; function internal parameter array arguments to print arguments inside the function; JS Error: No block-level scope

JS: Client (browser) scripting language weak type based on prototype event driver does not need to compile (run directly) The role of JS : Form verification, reduce the pressure on the service sideAdd a page animation effectdynamically change page

Use the JQuery method to implement date-time selection in JavaScript files

JavaScript Document$ (document). Ready (function (e) {display the current date in a text boxvar date = new Date ();var Nian = Date.getfullyear ();var yue = date.getmonth () +1;var Tian = date.getdate ();$ ("#rq"). Val (nian+ "-" +yue+ "-" +tian

JavaScript basic syntax

1. Add JavaScript to HTMLThe method is very simple, that is, through a pair of tags, and then write code inside the tag can2. Label PositionIn the traditional way, our script tags are placed in the head tag. However, as the browser renders it from

JavaScript Document Object Model model DOM

A DOM introductionD (document): A Web page document that can be understood to be loaded for the entire web;O (object): Can be understood as something like a Window object, you can call properties and methods, here is the document object;M (model): a

JavaScript Modular Programming (note)

Chapter One JavaScript modular programming(a): How the module is writtenA primitive notationA module is a set of methods to implement a specific function, as long as the different functions (and the variables that record the state) are simply put

Several patterns of JavaScript creation objects

While the object constructor or object literal can be used to create a single object, there are obvious drawbacks to these approaches: creating many objects using the same interface produces a lot of duplicate code. To solve this problem, people

There are three functions in JavaScript that can encode a string, namely: escape (), encodeuri (), encodeuricomponent ()

There are three functions in JavaScript that can encode strings, namely: escape,encodeuri,encodeuricomponent, corresponding 3 decoding functions: unescape,decodeuri, Decodeuricomponent.Here's a brief look at the difference between them1 Escape ()

JavaScript sort, not just bubbling

To do programming, sequencing is a necessary requirement. The front end is no exception, although not many, but you will certainly encounter.But when it comes to sorting, the easiest thing to think about is bubble sort, sort by, and insert

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