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Selection: collapse() method - Web APIs | MDN
collapse(node)
collapse(node, offset)
node
The caret location will be within this node. This value can also be set to
null
— if null
is specified, the method will behave like
Selection.removeAllRanges()
, i.e., all ranges will be removed from the
selection.
offset
Optional
The offset in node
to which the selection will be collapsed. If not
specified, the default value 0
is used.
// Place the caret at the beginning of an HTML document's body.
const body = document.querySelector("body");
window.getSelection().collapse(body, 0);