Range: selectNodeContents() method
        
        
          
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                  Widely available
                
                
              
        
        
        
          
                
              
                
              
                
              
        
        
      
      This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The Range.selectNodeContents() method sets the Range to contain the contents of a Node.
The parent Node of the start and end of the Range will be the
reference node. The startOffset is 0, and the endOffset is the
number of child Nodes or number of characters contained in the reference
node.
Syntax
js
selectNodeContents(referenceNode)
Parameters
Return value
None (undefined).
Examples
js
const range = document.createRange();
const referenceNode = document.querySelector("div");
range.selectNodeContents(referenceNode);
Live sample
This example lets the user select and deselect a paragraph with buttons.
Document.createRange(), Range.selectNodeContents(), and
Selection.addRange() are used to select the content.
Window.getSelection() and Selection.removeAllRanges() are
used to deselect it.
HTML
html
<p id="p">
  <strong>Use the buttons below</strong> to select or deselect the contents of
  this paragraph.
</p>
<button id="select-button">Select paragraph</button>
<button id="deselect-button">Deselect paragraph</button>
JavaScript
js
const p = document.getElementById("p");
const selectButton = document.getElementById("select-button");
const deselectButton = document.getElementById("deselect-button");
selectButton.addEventListener("click", (e) => {
  // Clear any current selection
  const selection = window.getSelection();
  selection.removeAllRanges();
  // Select paragraph
  const range = document.createRange();
  range.selectNodeContents(p);
  selection.addRange(range);
});
deselectButton.addEventListener("click", (e) => {
  const selection = window.getSelection();
  selection.removeAllRanges();
});
Result
Specifications
| Specification | 
|---|
| DOM> # dom-range-selectnodecontents> | 
Browser compatibility
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