[英]how to change div border-color by input value?
How to change div border-color by input value?如何通过输入值更改div边框颜色?
My Code我的代码
function myFunction() { var color = document.getElemntByID("inpx").value; document.getElementById("divx").style.borderColor = color; }
<!DOCTYPE html> <html> <head> </head> <body> <div id=divx"> </div> <button onClick=""> </button> <script> </script> </body> </html>
on*
inline JS handlers/attributes.不要使用on*
内联 JS 处理程序/属性。 Use Element.addEventListener() .使用Element.addEventListener() 。 JS should in in one place only, and that's either your JavaScript tag or file. JS 应该只在一个地方,那就是你的 JavaScript 标签或文件。getElemntByID
should be getElementById
getElemntByID
应该是getElementById
type="color"
使用输入type="color"
Create a reusable setBorderColor(Element, color)
function:创建一个可重用的setBorderColor(Element, color)
函数:
const EL = (sel, EL) => (EL||document).querySelector(sel); const setBorderColor = (el, color) => el.style.borderColor = color; const EL_inpx = EL("#inpx"); const EL_divx = EL("#divx"); EL_inpx.addEventListener("input", () => { setBorderColor(EL_divx, EL_inpx.value); }); setBorderColor(EL_divx, EL_inpx.value);
#divx {border: 10px solid transparent;}
<input id="inpx" type="color" value="#ff0088"> <div id="divx">test</div>
function myFunction() { const color = document.getElementById("inpx").value; document.getElementById("divx").style.borderColor = color; }
#divx { width: 50px; height: 50px; border-width: 1px; border-style: solid; margin-bottom: 1rem; }
<html> <body> <div id="divx"></div> <input type="text" value="blue" id="inpx"> <button onClick="myFunction()">Set border color</button> </body> </html>
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