, we use command-line shell scripts to do this, but the server applications here are deployed on some very different platforms, including Windows® and linux®. The system administrator will find it painful to write a shell script that runs on two platforms at the same time. The usual practice is to write a Windows batch file and a Unix®shell script, while ensuring that the two files are synchronized.
However, anyone who has read the pragmatic programmer knows that this is a serious violation of
know that the reference chain of the interactive encyclopedia does not transmit weights? Even strictly speaking, it is not a real chain. Once someone sent a soft text to do interactive encyclopedia, there are detailed methods, but after my careful study, found that the interactive Encyclopedia of reference links are basically useless.
I add my own reference links to the interactive encyclopedia, as follows:
Have you found anything wrong? Is it di
There are. js files and. css files in our web pages, but this does not mean that CSS and JS are independent and cannot be interacted with. Here are the five kinds of JavaScript and CSS to work together in a way you may not know!As the browser continues to upgrade, the boundaries between CSS and JavaScript become blurred. Originally they were responsible for compl
quantitiesMemory leakage. On IE7 and IE8, the memory goes up.
We know that some objects in IE are not native js objects. For exampleMemory leakageThe objects in DOM and BOM are implemented in the form of COM objects, while the garbage collection mechanism of COM objects adopts the reference counting policy. Therefore, even ifThe js engine of IE adopts the mark c
./*** Don ' t show any dividers.* Do not display any split lines*/public static final int show_divider_none = 0;/*** Show a divider at the beginning of the group.* Show Split line before this view group*/public static final int show_divider_beginning = 1;/*** Show split lines between each sub-view of this layout* Show dividers between each item in the group.*/public static final int show_divider_middle = 2;/*** Show Split line at the end of this layou
property. Constructor, which refers to the object-associated function (Foo). The object created by calling new Foo () through the constructor also has a. Constructor property, which points to "create this object's function."When you precede a normal function call with new, the function call becomes a "constructor call." New will hijack the normal function and call it in the form of a constructed object.function nothingspecial () { console.log ("Don
The next thing you don't know about Javascript is a straight line:
Each function is created by default with a prototype property, which contains a constructor property, and a hidden property __proto__ that points to the object. The value of the constructor property is the object of the function. The invocation of a function preceded by new, creates a new object that hides the prototype member of the function (linked by the __proto__ property),
You don't know. JavaScript (roll up) This book seems to me to be a good book, the book in a relatively concise language to describe the JS of those "pits", here to write some blog record notes for digestion and absorption.1 Compilation PrincipleIn this book, the beginning of the proposed: JavaScript is a compiler language, I started to think this is a domestic translation of the pot, translation is not accu
();
For the Bind () method, you can see here: http://helloweb.wang/qianduankaifa/Js%20JQuery/2015-12-06/403.htmlAbout parameters for SetInterval () and settimeout ()We all know that setinterval () and settimeout () can receive two parameters, the first parameter is a function that needs a callback, the parameter must be passed in, the second parameter is the time interval, the number of milliseconds
1We all know that JS in the decimal operation will have lost precision problems (other languages also), such as:// 0.30000000000000004A quick way to do this is to multiply the decimal number by 10, and then calculate, for example:(0.1*10+0.2*10)/10//0.3But this method is not 100% accurate, multiplied by the whole can also be lost precision, such as:// 217773.99999999997So there are several kinds of processi
a in the scope chain of this function, you want to use test0 declaratively instead of test1. As for why? It is a timing problem for variable declarations and function declarations, and after entering the execution environment, all the variable declarations and function declarations are traversed, and the function objects are generated, but the variables are not assigned values. This is also why JS in the function can be called after the declaration,
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