Is there a way to instantly set all selected nodes to their respective closest integer x,y positions?

Say I have a path with for example 100 nodes that all are placed at fractional x,y positions (like 2.345, 4.569 etc) and want the nodes to all be placed at integer positions (like 2, 5 etc) then as it is now I have to Enable Snapping, Snap Nodes and select and move each individual node such that they snap to the grid (so repeating that 100 times for this example). Needless to say this is very inefficient, is there way to do this automatically with one click shortcut or similar quick operation?

The pixelsnap extension is supposed to solve that problem.
Last time I checked it wasn't 100% perfect. May worth a try.

The extension Inkscape Gallery > Extensions > Rounder 0.3 by Jabiertxo Arraiza Cenoz might help.

It has "limitations" though (i.e. likely it does not fully match expectations not explicitly mentioned in the topic post), like for example:

• rounding SVG user unit values (i.e. not necessarily the same values as the representations in display units and right-handed coordinate system as shown in Inkscape's GUI)
• rounding values in select element attributes (i.e. absolute computed positions resulting from transforms on the object itself or on parent group(s) might still not be rounded to 0 precision)
• modifying all selected objects (i.e. the extension has not been updated to a recently added feature (>= Inkscape 0.92) to allow extensions to modify a list of selected path nodes only)
• storing values rounded to 0 precision as floats (i.e. not explicitly converting the rounded values to integers if feasible)
• ...

Thanks for the reply Lazur and ~suv, that's very helpful!