当我运行此代码时,它向我显示一个空白屏幕但是当我使用chrome中的开发人员工具更新代码时,它会显示数据.请帮助解释为什么它显示我使用chrome的开发人员工具更新代码的时候,是因为浏览器再次运行DOM,如果是,那么为什么不在第一次显示它时.这是否由于foreignObject而发生.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title></title>
</head>
<body>
<svg id="t">
<g>
<text x="10" y="10">hello</text>
</g>
</svg>
<script>
var s = document.getElementById('t');
var g = s.childNodes[1];
console.log(g.childNodes[1].remove());
var foreign = document.createElementNS('http://www.w3.org/2000/svg',"foreignObject");
foreign.setAttribute('width', 500);
foreign.setAttribute('height', 150);
var txt = document.createElementNS('http://www.w3.org/2000/svg', 'text');
txt.setAttribute('x', '10');
txt.setAttribute('y', '10');
var t = document.createTextNode("This is a paragraph.");
txt.appendChild(t);
foreign.appendChild(txt);
g.appendChild(foreign);
</script>
</body>
</html>
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小智 10
@JabranSaeed if you want to use foroeignObject,beter to follow this method
<html lang="en">
<head>
<meta charset="utf-8" />
<title></title>
</head>
<body>
<svg id="t">
<g>
</g>
</svg>
<script>
var s = document.getElementById('t');
var g = s.childNodes[1];
var foreign = document.createElementNS
('http://www.w3.org/2000/svg',"foreignObject");
foreign.setAttribute('width', 500);
foreign.setAttribute('height',500);
var iDivele = document.createElement('div');
var ob = document.createTextNode("xxxx");
iDiv.appendChild(ov);
foreign.appendChild(iDivele);
g.appendChild(foreign);
</script>
</body>
</html>
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@JabranSaeed if you want to use foroeignObject to insert non svg element then:
<html lang="en">
<head>
<meta charset="utf-8" />
<title></title>
</head>
<body>
<svg id="t">
<g>
</g>
</svg>
<script>
var s = document.getElementById('t');
var g = s.childNodes[1];
var foreign = document.createElementNS
('http://www.w3.org/2000/svg',"foreignObject");
foreign.setAttribute('width', 500);
foreign.setAttribute('height',500);
var iDiv = document.createElement('div');
var t = document.createTextNode("This is a paragraph.");
iDiv.appendChild(t);
foreign.appendChild(iDiv);
g.appendChild(foreign);
</script>
</body>
</html>
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