[英]Creating array from multiple inputs
I am trying to create an array where users enters multiple items into text box. 我试图创建一个数组,用户在其中输入多个项目到文本框中。 All i can get my function to return is the first entry.
我能得到的要返回的函数都是第一个条目。 Maybe i am approaching this wrong?
也许我正在解决这个错误?
function treez() { var treesArray = []; var ar = treesArray.push(document.getElementById("trees").value); var st = treesArray.toString(); document.getElementById("tresult").innerHTML = st; }
Enter 7 Trees <br> <textarea rows="5" cols="50" id="trees" name "trees"></textarea> <br> <br> <button type="button" class="processButton" onclick="treez()">submit</button> <br> <p id="tresult"> <p>
Move treesArray
out of the trees
function. 将
treesArray
移出trees
函数。
With it being in there, its being recreated every call. 有了它,就可以在每次调用时重新创建它。
var treesArray = []; function treez() { var ar = treesArray.push(document.getElementById("trees").value); var st = treesArray.toString(); document.getElementById("tresult").innerHTML = st; }
Enter 7 Trees <br> <textarea rows="5" cols="50" id="trees" name "trees"></textarea> <br> <br> <button type="button" class="processButton" onclick="treez()">submit</button> <br> <p id="tresult"> <p>
You can do it like this, asking the user to separate each entry with a comma: 您可以这样操作,要求用户用逗号分隔每个条目:
var treesArray = []
function treez() {
var trees = document.getElementById("trees").value;
treesArray = trees.split(",");
document.getElementByID("tresult").innerHTML = treesArray +
" " + treesArray.join(" - ");
}
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