strict mode

SQL Server ModeMySQL servers can operate in different SQL modes, and different modes can be applied to different clients. This allows each application to customize the operating mode of the server according to its own needs.The schema defines which

Enforcing optionsWhen set to true, these options would make jshint produce more warnings about your code. Bitwise This option prohibits the use of bitwise operators such ^ as (XOR), | (OR) and others. Bitwise operators is very rare in JavaScript

1.JavaScript variable boostIn JavaScript, the declarations of functions and variables are promoted to the topmost part of the function.In JavaScript, variables can be declared after they are used, that is, variables can be declared using the

Style sheet Brief IntroductionInternet Explorer 7 contains a number of improvements on cascading style sheet (CSS) parsing and rendering. These improvements are meant to improve Internet Explorer's ability to interpret cascading style sheets to meet

First, let's talk about this article.ArticleIs from the jsmix article. The title of jsmix is still in the fog."It's not a good player who won't cook fried rice.ProgramMember"Do you know this? I really don't know; Now the text begins. Many

How to serialize functions in JavaScript? What is the function serialization function? This article will introduce the function serialization in SpiderMonkey. If you need it, you can refer to the function in Javascript, which can be easily

The debugger statement does not start the debugger. However, if the debugger is already running, this statement will actually produce a breakpoint. For example, if you use the Firefox debug extension Firebug, you must first enable Firebug for the

This article will review the basic syntax in the ECMAScript specification. Good English friends can directly read the official documentation. JavaScript is essentially a type of C language. If you are familiar with C language, you can easily read

data Type a computer is a machine that can do mathematical calculations as the name implies, so that computer programs can handle a variety of values. However, the computer can handle far more than the numerical value, but also can deal with text,

1:ES5 IntroductionECMAScript 5.1 (or ES5 only) is a revision of the ECMAScript (JavaScript-based specification) standard. Similar to the HTML5 specification process, ES5 is standardized by merging existing JavaScript methods with the addition of

This article reviews the basic grammar in the ECMAScript specification, and good friends in English can read the official documents directly. JavaScript is essentially a Class C language, familiar with C language friends, can be very easy to read

In Javascript, functions can be easily serialized (stringized), that is, the function source code is obtained. however, the internal implementation (engine implementation) of this operation is not as simple as you think. spiderMonkey has used two

This article will review the basic syntax in the ECMAScript specification. Good English friends can directly read the official documentation. JavaScript is essentially a type of C language. If you are familiar with C language, you can easily read

In JavaScript, functions can be easily serialized (string), which is the source of the function. But actually the internal implementation of the operation (the engine implementation) is not as simple as you might think. Two techniques for

Problems encountered while migrating an old project. Because usually run stable, no problem, too concerned about. After this migration test, the server error: [ERR] 1364-field ' content ' doesn ' t has a default value.I think it's strange, why do

In the process of learning JavaScript, we want to write it down in some ways because we do not have a clear understanding of some concepts, therefore, it is easy to rashly set some biased conclusions for these concepts to facilitate your

1. NumberJavaScript does not distinguish between integers and floating-point numbers, and is uniformly represented by number, and the following are valid number types:// Integer 123 // floating point 0.456 // scientific notation means 1.2345x1000,

First, the grammar1. Case-sensitiveEverything in ECMAScript (variables, function names, and operators) is case-sensitive.2. IdentifiersThe so-called identifier refers to the name of a variable, function, property, or parameter of a

Chapter III Basic Concepts Everything in ECMAScript (variables, function names, and operators) is case-sensitive. Identifiers are the names of variables, functions, attributes, or parameters of a function. The constituent rules for

Object Initialization (English Source: ECMAScript-262 Fifth Edition) (Huang Di for commentary or vacancy)中文版 Object initialization is an expression that describes the initialization process of an object in a direct amount of terms. It is a list of 0