[英]Generating same random number onclick
Sorry if this a duplicate Question, searched high and low and could not find an answer. 很抱歉,如果这是一个重复的问题,搜索上下限都找不到答案。
I'm trying to generate a new random number on every click. 我试图在每次点击时生成一个新的随机数。 So far, only the first number is random and on every subsequent click nothing happens. 到目前为止,只有第一个数字是随机的,并且在随后的每次点击中都没有任何反应。 I think the getRandomNumber function is only evaluated once and thats why i'm getting the same number. 我认为getRandomNumber函数仅被评估一次,这就是为什么我得到相同的数字。
$(document).ready(function(){
var index = 0;
function getRandomNumber(){
shuffle = function(o){
for(var j, x, i = o.length; i; j = parseInt(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
return o;
};
var randorder = shuffle([0,1,2,3,4]);
return randorder[index++];
}
$("#button2").click(function(){
var gameq = new Array();
gameq[0] = "Question 1 ?";
gameq[1] = "Question 2 ?";
gameq[2] = "Question 3 ?";
gameq[3] = "Question 4 ?";
gameq[4] = "Question 5 ?";
$("#question").replaceWith('<h5>' + gameq[getRandomNumber()] + '</h5>')
});
});
You simply killing your #question
element at first time. 您只需在第一时间杀死您的#question
元素。 Try to change the last line like this: 尝试像这样更改最后一行:
$("#question").replaceWith('<h5 id="question">' + gameq[getRandomNumber()] + '</h5>');
Or may be it will be also good for you: 也许对您也有好处:
$("#question").html('<h5>' + gameq[getRandomNumber()] + '</h5>');
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