what tostring method

We often see some data types in javascript, such as "undefined", "boolean", and "string, this article will help you learn the basic JavaScript data types, value types, and reference types. For more information, see this article, four basic data

Varie! -[1,]; & nbsp; this code was called the world's shortest IE judgment code before IE9. The code is short but contains a lot of basic javascript knowledge. In this example, the toString () method of the array will be called before code

object is converted to the original valueobject to Boolean : compare Simple All objects to Boolean are true, including wrapper class new Boolean (False) is an object instead of the original value, it will be converted to trueobjects to numbers ,

1. Summary of this week's study#1.1 Try to summarize the knowledge points about inheritance using the mind map.#1.2 Use the general method to summarize other lessons.-learned about the inheritance of classes-Understand inheritance and polymorphism

ArticleDirectory Topic extension: The function of the tostring method is needless to say. This built-in JavaScript method also has a feature: When executing some special methods, such as alert or innerhtml, it will be automatically

Familiar with jdk1.5 enumeration types In the new features of jdk1.5 in the previous article, we discussed the simplest form of Enum, which is similar,Public Enum color {Red,Green,Blue;} This article describes the features of Enum in detail. As a

Today, I started to learn about Jakarta commons Lang. I am reading o'reilly's Jakarta commons cookbook. The reflectiontostringbuilder class is used to implement the tostring () method in the class. It adopts the Java reflection mechanism (reflection)

Methods automatically called by objects in PHP: set (), get (), tostring () summary: (1) _ get ($ property_name): When you get the value of $ name for a private attribute, this object automatically calls this method and passes the attribute name

As a New Keyword introduced by Sun, Enum looks like a special class. It can also have its own variables, define its own methods, and implement one or more interfaces. When declaring an Enum type, we should note that the enum type has the following

The toString () method Object class has a toString () method. Each class you create inherits this method. It returns a String representation of the object and is very helpful for debugging. However, the default toString () method often does not meet

1.Integer a=new Integer (6);//????System.out.println (a);//The value of the output is still 6???(1) Each object has an (inherited or re-) toString () method, which is typically used to output some information related to the object. The ToString ()

This article will introduce you to the usage of the php object-oriented _ toString () method, __tostring () method is automatically called, it is automatically called when an object reference is directly output. This article will introduce you to

JAVA optimization recommendations, JAVA Optimization Preface Code optimization is a very important topic. Some people may think it is useless. In some small places, what are the effects of modifying or not modifying the code on the code running

Java record-22-Explanation of basic class objects in JavaFor details about the basic class objects of Java, you should refer to and use the JDK documentation frequently. It is best to view the documentation in English. Oracle official online Java

Summary of Java code Performance Optimization Preface   Code optimization is a very important topic. Some people may think it is useless. In some small places, what are the effects of modifying or not modifying the code on the code running

Java Development code performance optimization summary, java code Performance Optimization Code optimization may be useless to some people. however, I think we should try our best to ask ourselves during the development process to develop good

Original link: http://www.cnblogs.com/imwtr/p/4392041.htmlConversion of dataAll objects inherit two conversion methods:The first is ToString (), whose function is to return a string that reflects the objectThe second is valueof (), whose function is

1. Object classIn the Java system, the Java.lang.Object class is at the top (the direct or indirect parent class for all objects). If a class does not declare its parent class without a write extends keyword, the class inherits the Java.lang.Object

Original link: http://www.importnew.com/6164.htmlYou may have seen some articles like "N Things about debugging". But I think I spend about 1 hours a day on debugging, which is a lot of time. So it is very worthwhile for us to understand some of the

In ECMAScript, all objects are not created equally. Generally, there are three of objects that can be created and used. 3.3.1 Local Object ECMA-262 defines the local object (native object) as "the object provided by the ECMAScript