JSFiddle - React, Tailwind, and code Playground

by Michael Prosser

JavaScript

snapToGrip = function(val,gridSize){
    var snap_candidate = gridSize * Math.floor(val/gridSize);
    if (val-snap_candidate < 2) {
        return snap_candidate;
    }
    else {
        return null;
    }
};

alert(snapToGrip(0.12,0.1));