javascript - 如何在单击按钮时动态更改所选文本的颜色？

Question

我正在使用以下代码来更改文本的颜色，但它不起作用。任何人都可以帮助我吗？ javascript 或 jquery 中的解决方案一切都很好..

         var pinktext = "#cc0099";
        document.execCommand("ForeColor", false, pinktext);

Answer 1

document.getElementById("change_color").onclick = function() {
  // Get Selection
  sel = window.getSelection();
  if (sel.rangeCount && sel.getRangeAt) {
    range = sel.getRangeAt(0);
  }
  // Set design mode to on
  document.designMode = "on";
  if (range) {
    sel.removeAllRanges();
    sel.addRange(range);
  }
  // Colorize text
  document.execCommand("ForeColor", false, "red");
  // Set design mode to off
  document.designMode = "off";
}

<span id="content" contenteditable>
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent sit amet odio eu magna mattis vehicula. Duis egestas fermentum leo. Nunc eget dapibus eros, id egestas magna. Fusce non arcu non quam laoreet porttitor non non dui. Ut elit nisl, facilisis id hendrerit et, maximus at nunc. Fusce at consequat massa. Curabitur fermentum odio risus, vel egestas ligula rhoncus id. Nam pulvinar mollis consectetur. Aenean dictum ut tellus id fringilla. Maecenas rutrum ultrices leo, sed tincidunt massa tempus ac. Suspendisse potenti. Aenean eu tempus nisl. 
</span>
<br/><br/>
<button id="change_color">Change Selected Text Color</button>