Измените background-image на URI данных без jQuery

Question

У меня есть данные в кодировке URI background-image, которые работают в CSS:

background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='95' height='6' viewBox='0 0 95 6'%3E%3Ctitle%3Escale mod%3C/title%3E%3Cg id='Layer_2' data-name='Layer 2'%3E%3Cg id='buttonbase'%3E%3Cg id='scale_mod' data-name='scale mod'%3E%3Cpath d='M95,6H0V5H95Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M94.953,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M86.4,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M77.853,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M69.3,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M60.753,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M52.2,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M43.653,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M35.1,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M26.553,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M18,5h-.9V3H18Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M9.452,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M.9,5H0V3H.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M89.11,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M80.56,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M72.01,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M63.46,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M54.91,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M46.36,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M37.81,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M29.26,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M20.71,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M12.16,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M3.61,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3C/g%3E%3C/g%3E%3C/g%3E%3C/svg%3E");

Есть ли способ назначить его динамически с помощью querySelector?

document.querySelector('.element').style.backgroundImage= ...

Answer 1

вы можете использовать шаблонный литерал для преодоления проблемы с кавычками.

document.querySelector('div').style.backgroundImage = `url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='95' height='6' viewBox='0 0 95 6'%3E%3Ctitle%3Escale mod%3C/title%3E%3Cg id='Layer_2' data-name='Layer 2'%3E%3Cg id='buttonbase'%3E%3Cg id='scale_mod' data-name='scale mod'%3E%3Cpath d='M95,6H0V5H95Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M94.953,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M86.4,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M77.853,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M69.3,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M60.753,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M52.2,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M43.653,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M35.1,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M26.553,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M18,5h-.9V3H18Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M9.452,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M.9,5H0V3H.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M89.11,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M80.56,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M72.01,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M63.46,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M54.91,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M46.36,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M37.81,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M29.26,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M20.71,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M12.16,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M3.61,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3C/g%3E%3C/g%3E%3C/g%3E%3C/svg%3E")`

div{width:100px;height:100px;}

<div></div>

---

также вы можете избежать кавычек.(Я просто заменяю " на \")

document.querySelector('div').style.backgroundImage = "url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='95' height='6' viewBox='0 0 95 6'%3E%3Ctitle%3Escale mod%3C/title%3E%3Cg id='Layer_2' data-name='Layer 2'%3E%3Cg id='buttonbase'%3E%3Cg id='scale_mod' data-name='scale mod'%3E%3Cpath d='M95,6H0V5H95Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M94.953,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M86.4,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M77.853,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M69.3,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M60.753,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M52.2,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M43.653,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M35.1,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M26.553,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M18,5h-.9V3H18Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M9.452,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M.9,5H0V3H.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M89.11,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M80.56,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M72.01,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M63.46,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M54.91,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M46.36,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M37.81,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M29.26,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M20.71,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M12.16,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M3.61,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3C/g%3E%3C/g%3E%3C/g%3E%3C/svg%3E\")"

div{width:100px;height:100px;}

<div></div>

Answer 2

Я бы предпочел, чтобы вы использовали идентификатор, чтобы получить определенный элемент для назначения фонового изображения, если вы хотите использовать класс, получите список элементов с этим классом - проверьте, есть ли у вас в аренду один элемент, возьмите этот элементи назначьте фоновое изображение с помощью Javascript - Также только что заметил, что ваш base64 не выглядит должным образом закодированными данными Base64:

var myElements = document.getElementsByClassName("element"); // or $(".element")
var myBase64Content = "data:image/svg+xml,..."; //Insert base 64 encoding here

// We have at least one element, take first and assign background image
if(myElements.length > 0) {
     myElements[0].style.backgroundImage = "url('" + myBase64Content + "')";
}

Answer 3

Вы можете назначить его для преобразования изображения base64 в класс css, назначить с помощью document.getElement и добавить класс css.

function setImage() {
  element = document.getElementById('app')
  element.className += " image";

}

.image {
  width: 100px;
  height: 100px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='95' height='6' viewBox='0 0 95 6'%3E%3Ctitle%3Escale mod%3C/title%3E%3Cg id='Layer_2' data-name='Layer 2'%3E%3Cg id='buttonbase'%3E%3Cg id='scale_mod' data-name='scale mod'%3E%3Cpath d='M95,6H0V5H95Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M94.953,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M86.4,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M77.853,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M69.3,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M60.753,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M52.2,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M43.653,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M35.1,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M26.553,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M18,5h-.9V3H18Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M9.452,5h-.9V3h.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M.9,5H0V3H.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M89.11,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M80.56,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M72.01,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M63.46,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M54.91,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M46.36,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M37.81,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M29.26,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M20.71,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M12.16,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3Cpath d='M3.61,0h.9V5h-.9Z' style='fill:%23c8c8c8'/%3E%3C/g%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>

<body>
  <button onclick="setImage()">set image</button>
  <div id="app">

  </div>
</body>

</html>