Home >Web Front-end >JS Tutorial >Determine whether a date is between two specified dates through js

Determine whether a date is between two specified dates through js

藏色散人Original: 2021-08-18 17:54:223400browse

In the previous article "How to use JavaScript to compare two dates", I introduced how to use JavaScript to compare two dates. Interested friends can read and learn~

The topic of this article is how to check whether a date is between two specified dates through javascript?

Below I will introduce to you two judgment implementation methods:

In the first method, we will use the .split() method and new Date() Constructor. In the second method, we will use the .getTime() method and the new Date() constructor.

The first method:

The code is as follows:

<!DOCTYPE html>
<html>
<head>
    <meta charset=utf-8 />
    <title></title>
    <style>
        body {
            text-align: center;
        }
        h1 {
            color: red;
        }
        #demo {
            font-weight: bold;
        }
    </style>

</head>
<body>
<h1>PHP中文网</h1>

<p>
    日期 1 = "06/04/2019"
    日期 2 = "07/10/2019"
    <br>待检查的日期 = "02/12/2019"
</p>

<button onclick="gfg_Run()">
    点击这里
</button>

<p id="demo"></p>

<script>
    var el_down = document.getElementById("demo");

    // 格式- MM/DD/YYYY
    var Date_1 = "06/04/2019";
    var Date_2 = "07/10/2019";
    var Date_to_check = "02/12/2019";

    function gfg_Run() {
        D_1 = Date_1.split("/");
        D_2 = Date_2.split("/");
        D_3 = Date_to_check.split("/");

        var d1 = new Date(D_1[2], parseInt(D_1[1]) - 1, D_1[0]);
        var d2 = new Date(D_2[2], parseInt(D_2[1]) - 1, D_2[0]);
        var d3 = new Date(D_3[2], parseInt(D_3[1]) - 1, D_3[0]);

        if (d3 > d1 && d3 < d2) {
            el_down.innerHTML = "该日期在日期1和日期2之间 "
                ;
        } else {
            el_down.innerHTML = "该日期不在日期1和日期2之间 "
                ;
        }
    }
</script>
</body>
</html>

The running effect is as follows:

GIF 2021-8-18 星期三下午 3-37-55.gif

##Second method:

The code is as follows:

<!DOCTYPE html>
<html>
<head>
    <meta charset=utf-8 />
    <title></title>
    <style>
        body {
            text-align: center;
        }
        h1 {
            color:#ff7800;
        }
        #demo {
            font-weight: bold;
        }
    </style>

</head>
<body>
<h1>PHP中文网</h1>

<p>
    日期 1 = "06/04/2019"
    日期 2 = "07/10/2019"
    <br>待检查的日期 = "02/8/2019"
</p>

<button onclick="gfg_Run()">
    点击这里
</button>

<p id="demo"></p>

<script>
    var el_down = document.getElementById("demo");

    // 格式 - MM/DD/YYYY
    var D1 = "06/04/2019";
    var D2 = "07/10/2019";
    var D3 = "02/8/2019";

    function gfg_Run() {
        D1 = new Date(D1);
        D2 = new Date(D2);
        D3 = new Date(D3);

        if (D3.getTime() <= D2.getTime()
            && D3.getTime() >= D1.getTime()) {
            el_down.innerHTML = "该日期在日期1和日期2之间"
                ;
        } else {
            el_down.innerHTML = "该日期在日期1和日期2之间"
                ;
        }
    }
</script>
</body>
</html>

The running effect is as follows:

GIF 2021-8-18 星期三下午 3-42-51.gif

Note:

split() method is used to split a string into a string array;

getTime()Method can return the number of milliseconds since January 1, 1970;

Date object is used to process date and time:

Create a Date object:

new Date()

The following four methods can also create Date objects:

var d = new Date();
var d = new Date(milliseconds);
var d = new Date(dateString);
var d = new Date(year, month, day, hours, minutes, seconds, milliseconds);

Finally, I would like to recommend "

JavaScript Basic Tutorial》~Welcome everyone to learn~

The above is the detailed content of Determine whether a date is between two specified dates through js. For more information, please follow other related articles on the PHP Chinese website!

JavaScript 构造函数 date 字符串 JS 对象

Statement：

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Previous article：Detailed explanation of how to use JavaScript to print the content of div elementsNext article：Detailed explanation of how to use JavaScript to print the content of div elements

See more

Determine whether a date is between two specified dates through js

Related articles