10 examples of 'document selection createrange' in JavaScript

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function createRangeFromNode(node) {
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  var range = node.ownerDocument.createRange()
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  try {
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    range.selectNode(node)
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  } catch (e) {
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    range.selectNodeContents(node)
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  }
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  return range
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}

72
function createRange(startContainer, startOffset, endContainer, endOffset) {
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  var rng = tinymce.DOM.createRng();
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  rng.setStart(startContainer, startOffset);
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  if (endContainer) {
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    rng.setEnd(endContainer, endOffset);
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  }
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  return rng;
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}

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getRangeAt(index: number): Range {
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  return new Range();
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}

72
function createRange(node, chars, range) {
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  if (!range) {
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      range = document.createRange()
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      range.selectNode(node);
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      range.setStart(node, 0);
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  }
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  if (chars.count === 0) {
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      range.setEnd(node, chars.count);
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  } else if (node && chars.count >0) {
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      if (node.nodeType === Node.TEXT_NODE) {
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          if (node.textContent.length < chars.count) {
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              chars.count -= node.textContent.length;
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          } else {
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              range.setEnd(node, chars.count);
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              chars.count = 0;
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          }
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      } else {
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         for (var lp = 0; lp < node.childNodes.length; lp++) {
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              range = createRange(node.childNodes[lp], chars, range);
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              if (chars.count === 0) {
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                  break;
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              }
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          }
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      }
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  }
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  return range;
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};

13
public static toRanges(selection: Selection): Range[] {
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    const result = [];
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    for (let idx = 0; idx < selection.rangeCount; idx++) {
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        // note that we almost always have 1 selection
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        const range = selection.getRangeAt(idx);
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        result.push(range);
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    }
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    return result;
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}

137
function activeRange(doc) {
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	// "Let selection be the result of calling getSelection() on the Document."
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	//
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	// We call getSelection() on defaultView instead, because Firefox and Opera
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	// don't follow the DOM Range spec here:
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	// https://bugzilla.mozilla.org/show_bug.cgi?id=636512
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	var selection = doc.defaultView.getSelection();
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	// "If there are no Ranges associated with selection, return null."
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	if (selection.rangeCount == 0) {
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		return null;
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	}
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	// "Let start be the boundary point with the earliest position among all of
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	// selection's Ranges' starts."
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	var startNode = null;
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	var startOffset = null;
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	for (var i = 0; i < selection.rangeCount; i++) {
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		if (startNode === null) {
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			startNode = selection.getRangeAt(i).startContainer;
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			startOffset = selection.getRangeAt(i).startOffset;
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			continue;
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		}
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		var testRange = doc.createRange();
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		testRange.setStart(startNode, startOffset);
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		if (testRange.compareBoundaryPoints(Range.START_TO_START, selection.getRangeAt(i)) < 0) {
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			startNode = selection.getRangeAt(i).startContainer;
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			startOffset = selection.getRangeAt(i).startOffset;
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		}
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	}
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	// "Return the last Range in selection whose start is start."
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	for (var i = selection.rangeCount - 1; i >= 0; i--) {
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		if (selection.getRangeAt(i).startContainer == startNode
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		&& selection.getRangeAt(i).startOffset == startOffset) {
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			return selection.getRangeAt(i);
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		}
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	}
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}

511
function getRangeDocument(range) {
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    return dom.getDocument(range.startContainer);
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}

74
function convertRange( range ) {
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	var rng;
76
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	if ( range instanceof CKEDITOR.dom.range ) {
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		rng = rangy.createRange( range.document.$ );
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		rng.setStart( range.startContainer.$, range.startOffset );
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		rng.setEnd( range.endContainer.$, range.endOffset );
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	}
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	else
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	{
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		rng = new CKEDITOR.dom.range( new CKEDITOR.dom.document( range.getDocument() ) );
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		rng.setStart( new CKEDITOR.dom.node( range.startContainer ), range.startOffset );
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		rng.setEnd( new CKEDITOR.dom.node( range.endContainer ), range.endOffset );
87
	}
88
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	return rng;
90
}

16
function createRange(newStart, newEnd) {
17
	return {
18
		start: newStart,
19
		count: newEnd - newStart
20
	};
21
}

339
getSelectionRange() {
340
  if (window.getSelection) {
341
    const sel = window.getSelection();
342
    if (sel.getRangeAt && sel.rangeCount) {
343
      return sel.getRangeAt(0);
344
    }
345
  } else if (document.selection && document.selection.createRange) {
346
    return document.selection.createRange();
347
  }
348
  return null;
349
}