how static works

Data members can be divided into static variables, non-static variables, two kinds.Static member: A member in a static class joins the static modifier, which is a statically member. You can access this static member directly using the class name +

Personal Summary:1. Memory recovery mechanism-tag clear algorithm: Starting from the root (global variable) to detect descendant variables, any root variables can not reach the variable will be marked as memory garbage.This is the third chapter of

Data members can be divided into static variables, non-static variables, two kinds.Static member: A member in a static class joins the static modifier, which is a statically member. You can access this static member directly using the class name +

Personal Summary: It takes 15 minutes to finish this article, this article introduced the abstract syntax tree and JS engine parsing these syntax tree process, referred to lazy parsing-that is, the process of converting to AST is not directly into

Static A static data type is used to create a permanent storage space for a variable. The statically variable keeps their values unchanged when invoked between functions. When used in a class, all the variables that are used in a static variable

Personal Summary:A JavaScript engine is implemented by a standard interpreter, or by an instant compiler.Interpreter (interpreter): interprets one line and executes one line.Compiler (Compiler): all compiled into machine code, unified execution.

how the ARP protocol works ARP This protocol function is: when the source host know the destination host's IP address and do not know the other's MAC address can use ARP this broadcast protocol to obtain the other's MAC address, the reason for

The role of the Java ClassLoader is to load classes at run time. The Java ClassLoader is based on three mechanisms: delegation, visibility and uniqueness. The delegate mechanism refers to the request to the parent class loader to load a class, and

A good Java programmer must understand how the GC works, how to optimize GC performance, and how to interact with the GC in limited ways, because there are applications that have higher performance requirements, such as embedded systems, real-time

1. Static in process-oriented design1.1 Static global variablesThe variable is defined as a static global variable before the global variable, plus the keyword static. Let's first give an example of a static global variable, as follows: Copy