javascript - How to fix the error "Selection.addRange()"? -


this question has answer here:

i need fix error :

the behavior selection.addrange() merges existing range , specified range deprecated , removed in m58, around april 2017. see https://www.chromestatus.com/features/6680566019653632 more details.

i can't edit, or destroy element of website.

from this github issue, have call removeallranges() before adding range selection:

selection = window.getselection();    // save selection. range = document.createrange(); range.selectnodecontents(elem); selection.removeallranges();          // remove ranges selection. selection.addrange(range);            // add new range.

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