How to randomly generate a number in js

The Math.random() function generates a random floating point number between 0 and 1. To generate random numbers within a specific range, you can use the following steps: 1. Set the minimum and maximum values. 2. Multiply the range width and add the minimum value. 3. Use Math.floor() to round down to an integer.

How to randomly generate a number in JavaScript

In JavaScript, you can use Math.random () function to generate a random floating point number between 0 and 1.

Usage:

<code class="js">Math.random(); // 产生一个 0 到 1 之间的随机浮点数</code>

Note:

• The generated number is a floating point number, not an integer.
• The random number generated may be different each time the same script is run.

Generate a random number within a specified range:

To generate a random number within a specific range (for example, generate between 1 and 10 random integer), you can use the following steps:

<code class="js">// 生成一个介于 1 到 10 之间的随机整数
let min = 1;
let max = 10;
let randomNumber = Math.floor(Math.random() * (max - min + 1)) + min;</code>

Detailed instructions:

1. Set the minimum and maximum values ​​of the range.
2. Multiply by (max - min 1) to generate a random number between 0 and (max - min).
3. Use Math.floor() to round it down to get an integer.
4. Add the minimum value to randomNumber to get the final result.

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