learning vue js 2 pdf

JS learning travelogue 2. js learning travelogue 1. The scope of a variable is declared outside of all functions. It is called a global variable because it can be accessed by any other code in the current document. The variable declared in the function is called a local var

Node. js Learning (2)-routing function and form upload, node. js form Today. getting started with js this book has learned some basic knowledge about node, including server creation, implementation of routing functions, form upload and data processing. some basic principles

Learning from scratch _ JavaScript _ series (8) -- js series (2) (event trigger sequence, text reading, js compiling ajax, input validation, and down menu) (20) event trigger sequence If there are multiple scripts in the document (for example, automatically executed scripts), they are executed in a certain order (in th

One, operator(1) Arithmetic: + Plus, minus, * multiply,/divide,% take surplusExample: Interlaced color, seconds turn time(2) Assignment Value: =, + =,-=, *=,/=,%=Like whati=i+1;i++;I+=1;i=i+3;i+=3;(3) Relationship:(4) Logic: with, | | Or! WhetherExample: Full selection and inverse selection(5) Arithmetic priority: parenthesesSecond, the program flow control(1) Judgment: If,switch,?:Switch syntax:Switch (variable){Case value 1:Statement 1;BreakCase Val

Npm is a module dependency management tool for Node. js. As a tool used by developers, it mainly solves problems encountered during Node. js development. Like RubyGems's importance to Ruby developers and Maven for Java developers, npm's importance to Node. js developers and communities is self-evident. NPM is a Node package management and distribution tool and ha

methods: 2. Notes are important In JS, "// comment content" is used for single-line comments, and "/* Comment content */" is used for multi-line comments. The function of annotation is to improve the readability of the Code. It is not only convenient for later use, but also helps others to read and understand the JS code you have compiled. The content of the co

comment or not, by comparing the difference between the time, we can see that the parallel path is not parallel executionConsole.log (New Date ()-T);}, 1000);var T1 = new Date ();Heavycompute (50000);Console.log (' a ');Console.log (New Date ()-T1);It turns out that no one has moved it since the parallel process was created.Summing up, JS is a single-threaded execution, even if the parallel thread inside the function is completed, the callback functi

distinguished from the JavaScript Advanced programming) and the JavaScript design pattern, both of which are heavyweight books, Can make your JS technology a new step, the two books the former master cultivation drilling, the latter main cultivation of internal strength, a little want to the universe and the relationship between the nine Yang Martial.The advanced programming of JavaScript Dom first teaches you to build a library of jquery-like tools,

Node. js Learning (2) -- routing and form upload Today. getting started with js this book has learned some basic knowledge about node, including server creation, implementation of routing functions, form upload and data processing. some basic principles of js. This book is v

JavaScript learning the first JS Foundation 1, javascript Character set: JavaScript uses the Unicode character set encoding. Why do you use this code? The reason is simple, 16-bit Unicode encoding can represent any written language of the Earth people. This is an important feature of language internationalization. (You may have seen a script written in Chinese, such as: function my functions () {}); Each c

1, the conversion between the object and the basic type: The object is not empty at any time, and is true in a Boolean environment. As New Boolean (FALSE); New number (0); New String (""); New Array (); Although the internal value is false, the value of the object is true; Object?ValueOf ()? ToString () Where the date class is to perform the ToString () conversion first. To manipulate a data value in 2,JS:

uninitialized and the output is undefined; the 5th row throws a reference exception because the variable has not been declared. (4) You can use a single statement to define multiple variables, separated by commas. Such as: Copy Code code as follows: var name= ' Linjisong ', Age=29, work= ' it '; (5) in the strict mode of ES5, you cannot define a variable named eval or arguments. 7, statements (1) Statement: with a semicolon ";" At the end, if the semicolon is omitted

JavaScript learning notes (2) js object learning. For more information about js learning, see. JavaScript learning notes (2)