如何使用 Javascript 更改 HTML5 上输入类型编号的最大值?
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How to change the max value for input type number on HTML5 with Javascript?
提问by Alberto
I need change the max attribute of an input element with JavaScript. For example:
我需要使用 JavaScript 更改输入元素的 max 属性。例如:
<input type="number" name="miname" min="0" max="MyVar" value="0"/>
回答by Ibu
You can assign an id to your input :
您可以为您的输入分配一个 id :
<input id="myInput" type="number" name="miname" min="0" max="MyVar" value="0"/>
then access it via javascript:
然后通过javascript访问它:
var input = document.getElementById("myInput");
input.setAttribute("max",100); // set a new value;
Note you can also access it directly if your input is in a form
请注意,如果您的输入是在表单中,您也可以直接访问它
document.formName.miname.setAttribute("max",newValue);
回答by erickyi2006
sharing the angular way of doing it. Use [attr.max].
分享做这件事的角度方式。使用 [attr.max]。
<input matInput type="number" min="0" [attr.max]="totalOrders" placeholder="Total Skybridge Orders" formControlName="totalSkybridge" (change)="onTotalSkybridgeOrders($event)"