替代方案1:原生js insertAdjacentHTML()

如果你根本不考虑切换到原生JavaScript…… 您还可以使用本地javaScript方法insertAdjacentHTML()来获得同样方便的表示法。

  $("#svg")[0].insertAdjacentHTML(
    "beforeEnd",
    '<circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red"/>'
  );

$("#svg")[0]使你的jQuery对象在原生JS中可选。

替代方案2:编写一个原生js DOMParser()帮助器

mdn web文档:DOMParser.parseFromString()

  function createSvgEl(markup) {
    markup = `<svg xmlns="http://www.w3.org/2000/svg">
  ${markup}</svg>`;
    const svgEl = new DOMParser().parseFromString(markup, "image/svg+xml")
      .documentElement.children[0];
    return svgEl;
  }

jQuery的用法:

  $("#svgXML").append(
    createSvgEl(
      '<circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red"/>'
    )
  );

Demo

// native js helper function createSvgEl(markup) { markup = `<svg xmlns="http://www.w3.org/2000/svg"> ${markup}</svg>`; const svgEl = new DOMParser().parseFromString(markup, "image/svg+xml") .documentElement.children[0]; return svgEl; } $(document).ready(function() { // works - but will remove existing children $("#svg1").html( '<circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red"/>' ); // works // $("#svg")[0] makes your jQueryObject selectable in native JS $("#svg")[0].insertAdjacentHTML( "beforeEnd", '<circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red"/>' ); $("#svgXML").append( createSvgEl( '<circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red"/>' ) ); // jquery still works! Vanilla doesn't harm! $("#svgXML circle:nth-of-type(2)").attr('fill', 'orange'); //insert after() $("#svgAfter circle").after( createSvgEl( '<circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red"/>' ) ); //insert after native $("#svgAfterNative circle")[0].insertAdjacentHTML( "afterEnd", '<circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red"/>' ); }); svg { border: 1px solid red; overflow: visible; } <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <p>Append via native js insertAdjacentHTML()</p> <svg id="svg" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 100" width="200px" height="100px"> <circle cx="10" cy="10" r="5" fill="green" /> </svg> <p>Append via DOMParser() helper</p> <svg id="svgXML" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 100" width="200px" height="100px"> <circle cx="10" cy="10" r="5" fill="green" /> </svg> <p>Append via jquery html() - will strip existing child nodes</p> <svg id="svg1" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 100" width="200px" height="100px"> <circle cx="10" cy="10" r="5" fill="green" /> </svg> <p>Insert after existing element with jQuery after() using DOMParser() helper</p> <svg id="svgAfter" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 100" width="200px" height="100px"> <circle cx="10" cy="10" r="5" fill="green" /> </svg> <p>Insert after existing element with native js insertAdjacentHTML()</p> <svg id="svgAfterNative" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 100" width="200px" height="100px"> <circle cx="10" cy="10" r="5" fill="green" /> </svg>

jquery的after()或before()方法也将无法添加SVG DOM(取决于正确的名称空间)元素。

使用前面提到的变通方法也可以解决这个问题。

 var svg; // if you have variable declared and not assigned value.
 // then you make a mistake by appending elements to that before creating element    
 svg.appendChild(document.createElement("g"));
 // at some point you assign to svg
 svg = document.createElementNS('http://www.w3.org/2000/svg', "svg")
 // then you put it in DOM
 document.getElementById("myDiv").appendChild(svg)
 // it wont render unless you manually change myDiv DOM with DevTools

// to fix assign before you append
var svg = createElement("svg", [
    ["version", "1.2"],
    ["xmlns:xlink", "http://www.w3.org/1999/xlink"],
    ["aria-labelledby", "title"],
    ["role", "img"],
    ["class", "graph"]
]);
function createElement(tag, attributeArr) {
      // .createElementNS  NS is must! Does not draw without
      let elem = document.createElementNS('http://www.w3.org/2000/svg', tag);             
      attributeArr.forEach(element => elem.setAttribute(element[0], element[1]));
      return elem;
}
// extra: <circle> for example requires attributes to render. Check if missing.

这是我今天对FF 57的工作:

function () {
    // JQuery, today, doesn't play well with adding SVG elements - tricks required
    $(selector_to_node_in_svg_doc).parent().prepend($(this).clone().text("Your"));
    $(selector_to_node_in_svg_doc).text("New").attr("x", "340").text("New")
        .attr('stroke', 'blue').attr("style", "text-decoration: line-through");
}

使:

一个更简单的方法是将SVG生成为字符串，创建包装器HTML元素，并使用$(“#wrapperElement”). HTML (svgString)将SVG字符串插入到HTML元素中。这在Chrome和Firefox中工作得很好。

发现了一个简单的方法，适用于我所有的浏览器(Chrome 49, Edge 25, Firefox 44, IE11, Safari 5 [Win]， Safari 8 (MacOS)):

// Clean svg content (if you want to update the svg's objects) // Note : .html('') doesn't works for svg in some browsers $('#svgObject').empty(); // add some objects $('#svgObject').append('<polygon class="svgStyle" points="10,10 50,10 50,50 10,50 10,10" />'); $('#svgObject').append('<circle class="svgStyle" cx="100" cy="30" r="25"/>'); // Magic happens here: refresh DOM (you must refresh svg's parent for Edge/IE and Safari) $('#svgContainer').html($('#svgContainer').html()); .svgStyle { fill:cornflowerblue; fill-opacity:0.2; stroke-width:2; stroke-dasharray:5,5; stroke:black; } <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div id="svgContainer"> <svg id="svgObject" height="100" width="200"></svg> </div> <span>It works if two shapes (one square and one circle) are displayed above.</span>

我可以看到圈在firefox，做2件事:

1)将文件从html重命名为xhtml

2)更改脚本为

<script type="text/javascript">
$(document).ready(function(){
    var obj = document.createElementNS("http://www.w3.org/2000/svg", "circle");
    obj.setAttributeNS(null, "cx", 100);
    obj.setAttributeNS(null, "cy", 50);
    obj.setAttributeNS(null, "r",  40);
    obj.setAttributeNS(null, "stroke", "black");
    obj.setAttributeNS(null, "stroke-width", 2);
    obj.setAttributeNS(null, "fill", "red");
    $("svg")[0].appendChild(obj);
});
</script>