使用 JavaScript 访问 HTML 元素的显示文本

Question

给定一个

<div id="e83v8" style="width: 86px; background-color: red; font-size: 10px; overflow-wrap: word-break; hyphens: auto;">This is a text that is long enough to cause a line break if set so. By using words like "incomprehensibilities", we can demonstrate word breaks.</div>

我想使用 JavaScript 访问带有连字符的格式化文本，以获得类似于

"This is a text that is long enough to cause a line break if set so. By using words like "incomprehensibilit-ies", we can demon-strate word breaks."

的字符串。这可能吗？

用例是我需要一种方法，仅使用 SVG 元素即可在 SVG 的

<text>

元素中断开和连字符文本。

Answer 1

也许可以尝试一下

const wrapText = (context, text, x, y, maxWidth, lineHeight) => {
  const words = text.split(' ');
  let line = '';

  words.forEach(word => {
    const testLine = line + word + ' ';
    const {
      width: testWidth
    } = context.measureText(testLine);

    if (testWidth > maxWidth && line !== '') {
      context.fillText(line, x, y);
      line = word + ' ';
      y += lineHeight;
    } else {
      line = testLine;
    }
  });

  context.fillText(line, x, y); // Render the last line
};

const canvas = document.getElementById('myCanvas');
const context = canvas.getContext('2d');
const maxWidth = 400;
const lineHeight = 25;
const x = (canvas.width - maxWidth) / 2;
const y = 60;
const text = document.getElementById('e83v8').textContent;

context.font = '16pt Calibri';
context.fillStyle = '#333';
wrapText(context, text, x, y, maxWidth, lineHeight);

<div id="e83v8" style="width: 86px; background-color: red; font-size: 10px; overflow-wrap: word-break; hyphens: auto;">This is a text that is long enough to cause a line break if set so. By using words like "incomprehensibilities", we can demonstrate word breaks.</div>

<canvas id="myCanvas" width="500" height="200"></canvas>