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Methods
findTextNodes(node, filteropt, nullable, onlyFirstLevelopt, nullable) → {Array.<Node>}
Extracts all pure text nodes from an Element, starting in the element itself.
Think of this function as a sort of find() where the result are not nodes, that query selectors can find, but pure text nodes. So you'll get a set of recursively discovered text nodes without tags, representing the pure text content of an element.
If you define to set onlyFirstLevel, you'll be able to retrieve all text on the first level of an element not included in any tag (paragraph contents without special formats as b/i/em/strong for example).
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
node |
HTMLElement | the element to search for text nodes inside |
||
filter |
function |
<optional> <nullable> |
null | a filter function to restrict the returned set, gets called with the textNode (you can access the parent via .parentNode) |
onlyFirstLevel |
Boolean |
<optional> <nullable> |
false | defines if the function should only return text nodes from the very first level of children |
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Throws:
error if node is not a usable HTML element
Returns:
- Type
- Array.<Node>
Example
const styledSentence = createElement('<div>arigatou <p>gozaimasu <span>deshita</span></p> mr. roboto<p>!<span>!!</span></p></div>');
findTextNodes(styledSentence).length;
=> 6
findTextNodes(styledSentence, null, true).length;
=> 2
findTextNodes(styledSentence, textNode => textNode.textContent.length < 9).length;
=> 3
findTextNodes(styledSentence).map(node => node.textContent).join('');
=> 'arigatou gozaimasu deshita mr. roboto!!!';