[英]How to get random characters from multiple different arrays in JavaScript
const array1 = ["A", "b", "C", "D", "f"]
const array2 = ["❤️", "🔥", "👋", "🦑", "😅"]
const array3 = ["0", "1", "2", "3", "4", "5"]
function renderItem() {
let randomI = Math.floor(Math.random() * array1.length)
console.log(array2[randomI])
}
function generateRandom () {
let randomValue = ""
for(let i = 0; i < 4; i++) {
randomValue += renderItem()
}
return randomValue
}
I create an input field in HTML where the user can select a number between (6 - 18).我在 HTML 中创建了一个输入字段,用户可以在其中 select (6 - 18)之间的数字。 and two input checkboxes.
和两个输入复选框。 if both or one of them are checked✅ I want to generate random characters from three(3) of the arrays or from two(2) different arrays.
如果两个或一个都被选中✅我想从 arrays 的三 (3) 个或从两个 (2) 不同的 arrays 生成随机字符。 if none of theme are not checked I want to generate random characters from the first array.
如果没有检查任何主题,我想从第一个数组中生成随机字符。
now my question is how do I get random eg(10) characters from those 3 different arrays?现在我的问题是如何从这 3 个不同的 arrays 中获取随机的 eg(10) 个字符?
maybe do a 2d array?也许做一个二维数组? if you don't want to change the original arrays.
如果您不想更改原来的 arrays。
const arr = [array1, array2, array3]
function renderItem() {
//randomly select an array
let randArrIndex= Math.floor(Math.random() * arr.length)
//now select a random Item from that array (we need it's length to get a valid index)
let randItemIndex = Math.floor(Math.random() * arr[randArrIndex].length)
console.log(arr[randArrIndex][randItemIndex])
}
sorry if I didn't understand the question correctly抱歉,如果我没有正确理解这个问题
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