


Compatible with IE, firefox and chrome js acquisition time (getFullYear)_time and date
Generally, when we get the year, we use the following code:
var now = new Date(); var initYear = now.getYear();
The above code is correct in initYear in IE, but it is not compatible under ff and chrome. Replace it with
var initYear = now.getFullYear();
Available under IE, FireFox and Chrome
The difference between getYear() and getFullYear() in JS:
The way to get the current year in js is var dayObj=new Date(); dayObj.getYear() to get the year. I wrote before that this will cause browser compatibility problems, that is, in IE we can get what we want The desired result does not work in FF, and there is a difference of 1900 years between the desired result and the desired result. What I did at that time was:
var dayObj=new Date(); var myYears = ( dayObj.getYear() < 1900 ) ? ( 1900 + dayObj.getYear() ) : dayObj.getYear(); document.write(myYears);
This way you can avoid the compatibility issues between IE and FF.
Now I see that there is such a method getFullYear() in js. After testing, it turns out that this method can avoid the above problems, and both IE and FF can display as we want.
getFullYear method
Returns the year value expressed in local time in a Date object.
dateObj.getFullYear()
The required dateObj parameter is a Date object.
Description
To get the year value in Coordinated Universal Time (UTC), use the getUTCFulYear method.
The getFullYear method returns the year value as an absolute number. For example, the return value for the year 1976 is 1976. This avoids the year 2000 problem, whereby dates after January 1, 2000, are not confused with dates after January 1, 1900.
The following example illustrates the usage of the GetFullYear method.
function DateDemo(){ var d, s = "今天 UTC 日期是: "; d = new Date(); s += (d.getMonth() + 1) + "/"; s += d.getDate() + "/"; s += d.getFullYear(); return(s); }

JavaScript core data types are consistent in browsers and Node.js, but are handled differently from the extra types. 1) The global object is window in the browser and global in Node.js. 2) Node.js' unique Buffer object, used to process binary data. 3) There are also differences in performance and time processing, and the code needs to be adjusted according to the environment.

JavaScriptusestwotypesofcomments:single-line(//)andmulti-line(//).1)Use//forquicknotesorsingle-lineexplanations.2)Use//forlongerexplanationsorcommentingoutblocksofcode.Commentsshouldexplainthe'why',notthe'what',andbeplacedabovetherelevantcodeforclari

The main difference between Python and JavaScript is the type system and application scenarios. 1. Python uses dynamic types, suitable for scientific computing and data analysis. 2. JavaScript adopts weak types and is widely used in front-end and full-stack development. The two have their own advantages in asynchronous programming and performance optimization, and should be decided according to project requirements when choosing.

Whether to choose Python or JavaScript depends on the project type: 1) Choose Python for data science and automation tasks; 2) Choose JavaScript for front-end and full-stack development. Python is favored for its powerful library in data processing and automation, while JavaScript is indispensable for its advantages in web interaction and full-stack development.

Python and JavaScript each have their own advantages, and the choice depends on project needs and personal preferences. 1. Python is easy to learn, with concise syntax, suitable for data science and back-end development, but has a slow execution speed. 2. JavaScript is everywhere in front-end development and has strong asynchronous programming capabilities. Node.js makes it suitable for full-stack development, but the syntax may be complex and error-prone.

JavaScriptisnotbuiltonCorC ;it'saninterpretedlanguagethatrunsonenginesoftenwritteninC .1)JavaScriptwasdesignedasalightweight,interpretedlanguageforwebbrowsers.2)EnginesevolvedfromsimpleinterpreterstoJITcompilers,typicallyinC ,improvingperformance.

JavaScript can be used for front-end and back-end development. The front-end enhances the user experience through DOM operations, and the back-end handles server tasks through Node.js. 1. Front-end example: Change the content of the web page text. 2. Backend example: Create a Node.js server.

Choosing Python or JavaScript should be based on career development, learning curve and ecosystem: 1) Career development: Python is suitable for data science and back-end development, while JavaScript is suitable for front-end and full-stack development. 2) Learning curve: Python syntax is concise and suitable for beginners; JavaScript syntax is flexible. 3) Ecosystem: Python has rich scientific computing libraries, and JavaScript has a powerful front-end framework.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SublimeText3 English version
Recommended: Win version, supports code prompts!

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

Dreamweaver Mac version
Visual web development tools

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools
