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How to output the day of the week in JavaScript

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Nov 11, 2021 pm 06:30 PM

html javascript front end

Method: 1. Define the "Array("Day", "One", "Two", "Three", "Four", "Five", "Six")" array; 2. Use getDay( ) method to obtain the number representing the day of the week; 3. Use the number as a subscript to obtain the value in the array; 4. Output through "document.write".

How to output the day of the week in JavaScript

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

How to output the week in JavaScript:

In the js tag, use the getDay() method to get today’s week code from the Date object . Then the Chinese name of the week is obtained by encoding the week in the array.

The getDay() method can return the number of a certain day of the week (0~6). Sunday is 0, Monday is 1, and so on.

JavaScript's Date object is used to process dates and times.

The code is as follows:

new Date().getDay()

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
<script >
var a = new Array("日", "一", "二", "三", "四", "五", "六");  
var week = new Date().getDay();  
var str = "今天是星期"+ a[week];  
alert(str); 
</script>
</body>
</html>

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Output result:

How to output the day of the week in JavaScript

The above example is in the form of a pop-up window, of course it can also be through a document. Write direct output:

How to output the day of the week in JavaScript

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