我必须在Js中把Button的值设置为Textbox+使随机器不一样。

问题描述 投票:-1回答:1

工作守则

数字是随机的,这很好.我需要改变它,比如当我点击 "数字 "类下的按钮时,0-9的数字不应该重复,ID是 "s1,s2,s3,s4..."。

当我点击时,会出现以下情况

1 2 3               3   5   7                        3 5 2
4 5 6   not like   !4  !4   2 It must be like this   1 4 7
7 8 9     ---->     8  !0   9      ----->            8 0 9
0                  !0                                6

++++

当我点击按钮时,必须在文本框中设置按钮的当前值,文本框的id是 "getir"。

这必须要做,但我无法做到。Javascript

function Random() {
    return (Math.floor(Math.random() * 10));
}

function randomValue() {
    var x = document.getElementsByClassName("numbers")
    var i;
    for (i = 0; i < x.length; i++) {
        x[i].value = Random()
    }
}

function silYazi() {
    document.getElementById("getir").value = "";
}
 <table>
            <tr>
                <input type="text" id="getir" value="" name="getir">
            </tr>
            <br>
            <tr>
                <input id="s1" type="button" class="numbers btn btn-outline-success mt-3" onclick="randomValue()"
                    value="1">
                <input id="s2" type="button" class="numbers btn btn-outline-success mt-3 ml-4" onclick="randomValue();"
                    value="2">
                <input id="s3" type="button" class="numbers btn btn-outline-success mt-3 ml-4" onclick="randomValue();"
                    value="3">
            </tr>
            <br>
            <tr>
                <input id="s4" type="button" class="numbers btn btn-outline-success mt-3" onclick="randomValue();"
                    value="4">
                <input id="s5" type="button" class="numbers btn btn-outline-success mt-3 ml-4" onclick="randomValue();"
                    value="5">
                <input id="s6" type="button" class="numbers btn btn-outline-success mt-3 ml-4" onclick="randomValue();"
                    value="6">
            </tr>
            <br>
            <tr>
                <input id="s7" type="button" class="numbers btn btn-outline-success mt-3" onclick="randomValue();"
                    value="7">
                <input id="s9" type="button" class="numbers btn btn-outline-success mt-3 ml-4" onclick="randomValue();"
                    value="8">
                <input id="s8" type="button" class="numbers btn btn-outline-success mt-3 ml-4" onclick="randomValue();"
                    value="9">
            </tr>
            <br>
            <tr>
                <input id="s0" type="button" class="numbers btn btn-outline-success mt-3" onclick="randomValue();"
                    value="0">
                <input id="btnSil" type="button" class="btn btn-outline-danger mt-3 ml-5" onclick="silYazi();"
                    value="Sil">
            </tr>
        </table>
javascript html dom
1个回答
0
投票

数字是随机的,这是很好的.我需要改变它像0-9数字不应该重复,当我点击按钮

从随机分布中挑选数字是行不通的,因为每一次抽签都是独立的,而且你的人口非常少,因此你会得到重复的数字。

与其选择随机的数字,你想要的是 洗牌 一个固定的数字列表(这里是0到9)。下面是一个应用于键盘的快速概念证明(使用 这个费舍尔-耶茨的实施):

const buttons = document.querySelectorAll("input");
const numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];

for (let i = 0, len = buttons.length; i < len; i++) {
  buttons[i].value = numbers[i];
  buttons[i].addEventListener("click", shuffleKeypad);
}

function shuffleKeypad() {
  shuffle(numbers);
  for (let i = 0, len = buttons.length; i < len; i++) {
    buttons[i].value = numbers[i];
  }
}

/**
 * Shuffles array in place.
 * @param {Array} a items An array containing the items.
 */
function shuffle(a) {
    var j, x, i;
    for (i = a.length - 1; i > 0; i--) {
        j = Math.floor(Math.random() * (i + 1));
        x = a[i];
        a[i] = a[j];
        a[j] = x;
    }
    return a;
}
<table>
  <tbody>
    <tr>
      <td><input type="button"></td>
      <td><input type="button"></td>
      <td><input type="button"></td>
    </tr>
    <tr>
      <td><input type="button"></td>
      <td><input type="button"></td>
      <td><input type="button"></td>
    </tr>
    <tr>
      <td><input type="button"></td>
      <td><input type="button"></td>
      <td><input type="button"></td>
    </tr>
    <tr>
      <td><input type="button"></td>
    </tr>
  </tbody>
</table>

0
投票

我自己解决了,如果有人需要...

////////////////////////////////////////////////////////

function yazdir(yazi) {

    document.getElementById("getir").value += yazi;

    function Random() {
        return (Math.floor(Math.random() * 10));
    }

    var i;
    for (i = 0; i < 10; i++) {
        a = Random(); //a = 5

        var x = document.getElementById("s" + i); // 1 değeri için  x=1
        var y = document.getElementById("s" + a);
        var temp;

        temp = x.value; // x : 0
        x.value = y.value; // y :5
        y.value = temp; //temp :0
    }
}

function silYazi() {
    document.getElementById("getir").value = "";
}
<table>
  <tr>
    <input type="text" id="getir" value="" name="getir" disabled>
  </tr>
  <br>
  <tr>
    <input id="s1" type="button" class="numbers btn btn-outline-success mt-3" onclick="yazdir(value)" value="1">
    <input id="s2" type="button" class="numbers btn btn-outline-success mt-3 ml-4" onclick="yazdir(value)" value="2">
    <input id="s3" type="button" class="numbers btn btn-outline-success mt-3 ml-4" onclick="yazdir(value)" value="3">
  </tr>
  <br>
  <tr>
    <input id="s4" type="button" class="numbers btn btn-outline-success mt-3" onclick="yazdir(value)" value="4">
    <input id="s5" type="button" class="numbers btn btn-outline-success mt-3 ml-4" onclick="yazdir(value)" value="5">
    <input id="s6" type="button" class="numbers btn btn-outline-success mt-3 ml-4" onclick="yazdir(value)" value="6">
  </tr>
  <br>
  <tr>
    <input id="s7" type="button" class="numbers btn btn-outline-success mt-3" onclick="yazdir(value)" value="7">
    <input id="s8" type="button" class="numbers btn btn-outline-success mt-3 ml-4" onclick="yazdir(value)" value="8">
    <input id="s9" type="button" class="numbers btn btn-outline-success mt-3 ml-4" onclick="yazdir(value)" value="9">
  </tr>
  <br>
  <tr>
    <input id="s0" type="button" class="numbers btn btn-outline-success mt-3" onclick="yazdir(value)" value="0">
    <input id="btnSil" type="button" class="btn btn-outline-danger mt-3" onclick="silYazi();" value="Sil">
  </tr>
</table>
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