c programming language first edition pdf

forwardExtract some of the things in the book that feel useful:In the final analysis: code is a reflection of ideas and concepts.In fact, no one can remember all the syntax and keywords of a programming language. If there is any doubt, consult the reference book to solve it all.Smooth degradation, progressive enhancement, user-centric design is important for any front-end Web development effort.If you want

It's hard to finish the code on this book, and now I'll start with a brief look at it.The first two chapters briefly introduce the syntax of JavaScript, because this book is mainly about DOM, so it's relatively simple here, basically around the area.Chapter One A brief history of JavaScript. Just understand, whatever it is.Chapter II JavaScript syntax.1. The statement (statement) should be followed by a semicolon, which is a good programming habit to

form submissions by first setting the Content-type header information to application/x-www-form-urlencoded, which is the type of content at the time the form was submitted, followed by creating a string in the appropriate format. The 14th chapter has discussed the format of the POST data in the same format as the query string. If you need to serialize the data for a form in a page and then send it to the server via XHR, you can use the Serialize () function described in chapter 14th to create t

the formal parameters synchronously Para1 Console.info (Arguments[1]);//-1 Para2 = 2; Console.info (Arguments[1]);//2, modify the formal parameter para2, will be synchronized modify ARGUMENTS[1] Console.info (PARA3);//undefined, the formal parameter not passed in the actual parameter is undefined ARGUMENTS[2] = 3; Console.info (arguments[2]);//3 Console.info (PARA3);//undefined, formal parameters that do not accept actual arguments do not have a sync relationship Console.info (Arg

, the browser does not display anything in the 　　Extension: Hack technologyDue to different browsers, the parsing of CSS is not the same, so it will result in the resulting page effect is not the same, not get the page effect we need. At this time, we need to write different CSS for different browsers, so that it can be compatible with different browsers, can also be in different browsers to get the desired page effect. The process of writing different CSS code for different browsers is called C

Doe // Script Error　(2) All variables that do not have a direct assignment defined are automatically declared as having global scopefunction dosomething () { var Name= "Zhang San"; NewName= "John Doe"; // Zhang San // John Doe // Script ErrorThe variable blogname has a global scope, and AuthorName cannot be accessed outside the function.(3) All Window object properties have global scopeIn general, the built-in properties of the Window object have global scope, such as Window.name, Win

the number is turned out, if there are characters, turn out Nan. If it is empty, turn out 0.The Parsenint () function has the following transformations: see if the first character is a number to decide whether to go out. For the problem of the binary, provide the second parameter is the binary number.The Parsenfloat () function has the following transformations: It only applies to decimal when it is converted, so the hexadecimal data is turned out 0.3) The length of any one string can be output

1. Multiplicative operators:1) * Method of operation:Infinity * 0 = NaN Infinity * Not 0 = Infinity or-Infinity2)/method operator:infinity/infinity = Nan 0/0 = nan n0/0 = Infinity2. Relational operators:3. Conditional operators, assignment operators, comma operators, and so on.4. Statement:If,do-wihle,while,for,for-in,with,break,continue,label.5. Functions:1) Understand parameters: any parameters in the function are actually stored in the arguements[] array.2) without overloading, it will perfor

to the height of the right sub-tree. The key values can be traversed from small to large using the middle order traversal (with iterators).Refer to Cplusplus for a more detailed description of the set container.The specific code is as follows:1#include 2#include Set>3 using namespacestd;4 5 intMain ()6 {7 intMyints[] = { $, at, the, the, - };8 Setint> MySet (myints, myints +5);//Use the ' Set ' member function ' Insert ' is also OK.9 Ten Setint>::iterator ITR =Myset.begin (); One

the array item, the position of the item in the array, the array object itselfL every (): Runs the given function for each item in the array, and returns True if the function returns true for each itemL filter (): An array of items that run the given function for each item in the array, returning the function that returns trueL ForEach (): Runs the given function for each item in the array, this method does not return a valueL map (): Each item in an array runs the given function, returning an

(Uniform Resource Identifiers, Universal Resource Identifiers) to be sent to the browser. where encodeURI () is used primarily for the entire URI, and encodeURIComponent () is used primarily to encode a segment of the URI. The difference is that encodeURI () does not encode special characters that are themselves URIs, such as colons, forward slashes, question marks, and well sizes, while encodeuricomponent () encodes any non-standard characters it discovers. The two methods corresponding to enc

This chapter mainly introduces some of the history of JavaScript:1.Javascript mainly consists of three parts: Ecmascript,dom,bom.ECMAScript: The mainstream browser is now fully supported.DOM: Maps the entire HTML page to a multi-tiered node structure. With the API provided by the DOM, developers can easily delete, add, replace, or modify nodes.BOM: Control browser window size, move, Ajax object, etc.Summary: JavaScript is a scripting language specific

JavaScript code must be executed through the html/xhtml document, and the first way is to put the JS code between the to put the , allowing the browser to load the page fasterPS: Browser page load order: Please read this articleJS Note: 1,///2,/* 3, JS can be used JS allows programmers to directly assign values to variables without prior declaration, the most efficient declaration and assignment practices: var mood= "Happy", age=33;JS is a weakly typed lang