所以我很高兴能从我以前的问题中得到这个表格的帮助;但我遇到了另一个问题。单词生成器为该工具工作的方式是使用math.random从1-9生成随机数，然后使用math.floor对其进行舍入。然后，通过它，该代码的function changeRandom()方面抓取该数字，并根据该数字将数字更改为随机字，这样如果生成的随机数为3，它将变为Word 3.现在，我试图为答案做同样的事情，但似乎没有改变。调试控制台只给我一个错误的事情是没有为getRandomAnswer()定义gen_nums，但是当我删除它时，处理需要更长的时间+有关于最大文件空间或其他的错误。我需要使用单词选择器功能完成类似的操作以应用9个框。这是代码。
注意：代码中的注释/注释可以忽略，因为它们仅供参考。
<div id="randomizer">
<div id="wordOutput">
<div id="output">
<p id="outputNumber"></p>
</div>
<div id="button">
<!-- This is the button that calls the getRandom() function to create the word. --><button id="myBtn">Randomize!</button><br>
<caption>Click this button to generate a random word!
</caption>
<!-- This is apart of the Randomizer tool, which can be changed to fit the words. It will output the answers based on -->
<div id="answers">
<div class="output1" id="output1"></div>
<div class="output2" id="output2"></div>
<div class="output3" id="output3"></div><br>
<div class="output4" id="output4"></div>
<div class="output5" id="output5"></div>
<div class="output6" id="output6"></div><br>
<div class="output7" id="output7"></div>
<div class="output8" id="output8"></div>
<div class="output9" id="output9"></div>
</div>
</div>
/*function playSound() {
}
*/
/* This section is for the first tool; the Randomizer.*/
/* This is the new function for getting a random number; also used in the getRandomAnswer() function. To select different numbers, adjust the range. */
function getRandom() {
var nums = [1,2,3,4,5,6,7,8,9];
var gen_nums = [];
function in_array(array, el) {
for(var i = 0 ; i < array.length; i++)
if(array[i] == el) return true;
return false;
}
function get_rand(array) {
var rand = array[Math.floor(Math.random()*array.length)];
if(!in_array(gen_nums, rand)) {
gen_nums.push(rand);
return rand;
}
return get_rand(array);
}
for(var i = 0; i < 9; i++) {
return (get_rand(nums));
}
}
function timeOut(){
/* This can be ignored, as it was a testing function for creating, making, and fixing the randomizer tool, but may change based on creating new tools that need to be troubleshooted. */
setTimeout (changeRandom, 1);
}
/* This is the function that grabs the innerHTML (what the box says) of the #output1 and changes that number to the word specified. [In example, if the number [randomly] generated was 5, then this function detects that the number was 5 and changes it to Word 5.] */
function changeRandom() {
/* Using the "var x" command, this tells the function that whenever there's an x in the code, it will read it as "document.getElementById('output1').innerHTML", and will grab whatever is inside that #output1 element. */
var x = document.getElementById('outputNumber').innerHTML
/* Here's the tutorial for modifying this tool for the possible answers. This tool [by default] has it set to */
if(x == 1) {
document.getElementById("outputNumber").innerHTML = "Word 1";
} else if(x == 2) {
document.getElementById("outputNumber").innerHTML = "Word 2";
} else if(x == 3) {
document.getElementById("outputNumber").innerHTML = "Word 3";
} else if(x == 4) {
document.getElementById("outputNumber").innerHTML = "Word 4"
} else if(x == 5) {
document.getElementById("outputNumber").innerHTML = "Word 5"
}
else if(x == 6) {
document.getElementById("outputNumber").innerHTML = "Word 6"
}
else if(x == 7) {
document.getElementById("outputNumber").innerHTML = "Word 7"
}
else if(x == 8) {
document.getElementById("outputNumber").innerHTML = "Word 8"
}
else if(x == 9) {
document.getElementById("outputNumber").innerHTML = "Word 9"
}
else if(x == 10) {
document.getElementById("outputNumber").innerHTML = "Word 10"
}
/* If the function is broken [by user modifications], it will output "Error :c", which means the user should check their modifications. */
else {
document.getElementById("output1").innerHTML = "Error :c"
}
}
document.getElementById("myBtn").addEventListener("click", function(){document.getElementById("outputNumber").innerHTML = getRandom(); changeRandom();})
function testFunction() {
if(document.getElementById("output1").innerHTML == 3) {
document.getElementById("output1").innerHTML = "Three";
}
else {
document.getElementById("output1").innerHTML = "N3"
}
}
function getRandomAnswer() {
var nums = [1, 2, 3, 4, 5, 6, 7, 8, 9];
var copy = nums.slice();
for (var i = 0, len = nums.length; i < len; i++) {
var j = Math.floor(Math.random() * copy.length);
var rand = copy[ j ];
// remove from array
copy.splice(j, 1);
// add to output
document.getElementById('output' + (i + 1)).innerHTML = rand;
}
return gen_nums;
document.getElementById('output' + (i + 1)).innerHTML = getRandomAnswer();
}
function changeRandomAnswer() {
/* Using the "var x" command, this tells the function that whenever there's an x in the code, it will read it as "document.getElementById('output1').innerHTML", and will grab whatever is inside that #output1 element. */
/* Here's the tutorial for modifying this tool for the possible answers. This tool [by default] has it set to */
if(document.getElementById("output1").innerHTML = "1") {
document.getElementById("output1").innerHTML = "Answer 1";
}
else if(document.getElementById("output1").innerHTML = "2") {
document.getElementById("output2").innerHTML = "Answer 2";
}
else if(document.getElementById("output1").innerHTML = "3") {
document.getElementById("output3").innerHTML = "Answer 3";
}
else if(document.getElementById("output1").innerHTML = "4") {
document.getElementById("output4").innerHTML = "Answer 4"
}
else if(document.getElementById("output1").innerHTML = "5") {
document.getElementById("output5").innerHTML = "Answer 5"
}
else if(document.getElementById("output1").innerHTML = "6") {
document.getElementById("output6").innerHTML = "Answer 6"
}
else if(document.getElementById("output1").innerHTML = "7") {
document.getElementById("output7").innerHTML = "Answer 7"
}
else if(document.getElementById("output1").innerHTML = "8") {
document.getElementById("output8").innerHTML = "Answer 8"
}
else if(document.getElementById("output1").innerHTML = "9") {
document.getElementById("output9").innerHTML = "Answer 9"
}
/* If the function is broken [by user modifications], it will output "Error :c", which means the user should check their modifications. */
else {
document.getElementById("output1").innerHTML = "Error :c"
}
}
document.getElementById("myBtn").addEventListener("click", function(){document.getElementById("answers").innerHTML = getRandomAnswer(); changeRandomAnswer();})
这是一个可行的codepen。
答案 0 :(得分：1)
您有一些范围问题和递归问题。简化：
function foo() {
var gen_nums = [];
for ( var i=0; i<10; i++ ) {
gen_nums.push(i)
}
return gen_nums;
}
function bar() {
var nums = [1, 2, 3, 4, 5, 6, 7, 8, 9];
var copy = nums.slice();
return gen_nums;
bar()
}
console.log(foo()) // [0, ..., 9]
console.log(bar()) // error - gen_nums is not defined
将其从getRandomAnswer()中移除的原因会使事情花费更长的时间，因为当它存在时，函数会在该行停止，而不会到达下一行，这是
document.getElementById('output' + (i + 1)).innerHTML = getRandomAnswer();
使函数递归。
答案 1 :(得分：0)
您的getRandomAnswer功能
function getRandomAnswer() {
var nums = [1, 2, 3, 4, 5, 6, 7, 8, 9];
var copy = nums.slice();
for (var i = 0, len = nums.length; i < len; i++) {
var j = Math.floor(Math.random() * copy.length);
var rand = copy[ j ];
// remove from array
copy.splice(j, 1);
// add to output
document.getElementById('output' + (i + 1)).innerHTML = rand;
}
return gen_nums;
document.getElementById('output' + (i + 1)).innerHTML = getRandomAnswer();
}
在此，您将在执行某些代码之前返回gen_nums。所以写一下，
function getRandomAnswer() {
var nums = [1, 2, 3, 4, 5, 6, 7, 8, 9];
var copy = nums.slice();
for (var i = 0, len = nums.length; i < len; i++) {
var j = Math.floor(Math.random() * copy.length);
var rand = copy[ j ];
// remove from array
copy.splice(j, 1);
// add to output
document.getElementById('output' + (i + 1)).innerHTML = rand;
}
document.getElementById('output' + (i + 1)).innerHTML = getRandomAnswer();
return gen_nums;
}
here是您在jsfiddle中的工作代码。
答案 2 :(得分：0)
您提供的代码有一些不必要的东西。
在最后一行，您不需要将 getRandomAnswer（）的输出分配给“answers”的innerHTML。函数本身已经在执行操作以将随机数分配给每个输出。您只需调用该功能即可：
document.getElementById("myBtn").addEventListener("click", function(){ getRandomAnswer(); changeRandomAnswer();})
在 getRandomAnswer（）的功能中，您可以删除return gen_numbers;，然后删除该行：
document.getElementById('output' + (i + 1)).innerHTML = getRandomAnswer();
这导致递归并且完全没有必要，因为这些数字正好在之前的for循环中应用。
功能 changeRandomAnswer（）有一些问题需要解决：
一种解决方案是遍历每个元素并对每个元素运行相同的条件检查：
function changeRandomAnswer() {
var answers = document.getElementById("answers");
for(var i = 0, len = answers.children.length; i < len; i++) {
var output = answers.children[i];
var answer = output.innerHTML;
if(answer == "1") {
output.innerHTML = "Answer 1";
}
else if(answer == "2") {
output.innerHTML = "Answer 2";
}
else if(answer == "3") {
output.innerHTML = "Answer 3";
}
else if(answer == "4") {
output.innerHTML = "Answer 4"
}
else if(answer == "5") {
output.innerHTML = "Answer 5"
}
else if(answer == "6") {
output.innerHTML = "Answer 6"
}
else if(answer == "7") {
output.innerHTML = "Answer 7"
}
else if(answer == "8") {
output.innerHTML = "Answer 8"
}
else if(answer == "9") {
output.innerHTML = "Answer 9"
}
else {
output.innerHTML = "Error :c"
}
}
}
以下是提及所有编辑的完整javascript（我也在codepen here分叉了一个工作版本）：
/*function playSound() {
}
*/
/* This section is for the first tool; the Randomizer.*/
/* This is the new function for getting a random number; also used in the getRandomAnswer() function. To select different numbers, adjust the range. */
function getRandom() {
var nums = [1,2,3,4,5,6,7,8,9];
var gen_nums = [];
function in_array(array, el) {
for(var i = 0 ; i < array.length; i++)
if(array[i] == el) return true;
return false;
}
function get_rand(array) {
var rand = array[Math.floor(Math.random()*array.length)];
if(!in_array(gen_nums, rand)) {
gen_nums.push(rand);
return rand;
}
return get_rand(array);
}
for(var i = 0; i < 9; i++) {
return (get_rand(nums));
}
}
function timeOut(){
/* This can be ignored, as it was a testing function for creating, making, and fixing the randomizer tool, but may change based on creating new tools that need to be troubleshooted. */
setTimeout (changeRandom, 1);
}
/* This is the function that grabs the innerHTML (what the box says) of the #output1 and changes that number to the word specified. [In example, if the number [randomly] generated was 5, then this function detects that the number was 5 and changes it to Word 5.] */
function changeRandom() {
/* Using the "var x" command, this tells the function that whenever there's an x in the code, it will read it as "document.getElementById('output1').innerHTML", and will grab whatever is inside that #output1 element. */
var x = document.getElementById('outputNumber').innerHTML
/* Here's the tutorial for modifying this tool for the possible answers. This tool [by default] has it set to */
if(x == 1) {
document.getElementById("outputNumber").innerHTML = "Word 1";
} else if(x == 2) {
document.getElementById("outputNumber").innerHTML = "Word 2";
} else if(x == 3) {
document.getElementById("outputNumber").innerHTML = "Word 3";
} else if(x == 4) {
document.getElementById("outputNumber").innerHTML = "Word 4"
} else if(x == 5) {
document.getElementById("outputNumber").innerHTML = "Word 5"
}
else if(x == 6) {
document.getElementById("outputNumber").innerHTML = "Word 6"
}
else if(x == 7) {
document.getElementById("outputNumber").innerHTML = "Word 7"
}
else if(x == 8) {
document.getElementById("outputNumber").innerHTML = "Word 8"
}
else if(x == 9) {
document.getElementById("outputNumber").innerHTML = "Word 9"
}
else if(x == 10) {
document.getElementById("outputNumber").innerHTML = "Word 10"
}
/* If the function is broken [by user modifications], it will output "Error :c", which means the user should check their modifications. */
else {
document.getElementById("output1").innerHTML = "Error :c"
}
}
document.getElementById("myBtn").addEventListener("click", function(){document.getElementById("outputNumber").innerHTML = getRandom(); changeRandom();})
function testFunction() {
if(document.getElementById("output1").innerHTML == 3) {
document.getElementById("output1").innerHTML = "Three";
}
else {
document.getElementById("output1").innerHTML = "N3"
}
}
function getRandomAnswer() {
var nums = [1, 2, 3, 4, 5, 6, 7, 8, 9];
var copy = nums.slice();
for (var i = 0, len = nums.length; i < len; i++) {
var j = Math.floor(Math.random() * copy.length);
var rand = copy[ j ];
// remove from array
copy.splice(j, 1);
// add to output
document.getElementById('output' + (i + 1)).innerHTML = rand;
}
//return gen_nums;
//document.getElementById('output' + (i + 1)).innerHTML = getRandomAnswer();
}
function changeRandomAnswer() {
var answers = document.getElementById("answers");
for(var i = 0, len = answers.children.length; i < len; i++) {
var output = answers.children[i];
var answer = output.innerHTML;
if(answer == "1") {
output.innerHTML = "Answer 1";
}
else if(answer == "2") {
output.innerHTML = "Answer 2";
}
else if(answer == "3") {
output.innerHTML = "Answer 3";
}
else if(answer == "4") {
output.innerHTML = "Answer 4"
}
else if(answer == "5") {
output.innerHTML = "Answer 5"
}
else if(answer == "6") {
output.innerHTML = "Answer 6"
}
else if(answer == "7") {
output.innerHTML = "Answer 7"
}
else if(answer == "8") {
output.innerHTML = "Answer 8"
}
else if(answer == "9") {
output.innerHTML = "Answer 9"
}
else {
output.innerHTML = "Error :c"
}
}
}
document.getElementById("myBtn").addEventListener("click", function(){ getRandomAnswer(); changeRandomAnswer();})