I'm using apexcharts v3.19.3 and I would like to know how to limit my zoom out option to the available x-axis range. Currently, I can zoom out indefinitely. 
The example code in apexcharts docs will be enough to recreate the issue. Keep zooming out to recreate my problem
Well, after some digging around I solved the problem. Leaving the solution here. So, Apex gives us access to several events. BeforeZoom fires before zoom and gives us access to the new max and min positions. I just compared to see whether my original range was smaller than the new range. If so I returned my original range, which disables the zoom out.
charts : {
events : {
beforeZoom : (e, {xaxis}) => {
let maindifference = (new Date(props.data[0].date)).valueOf() - new Date(props.data[props.data.length-1].date).valueOf();
let zoomdifference = xaxis.max - xaxis.min ;
if( zoomdifference > maindifference )
return {
// dont zoom out any further
xaxis: {
min: props.data[0].date,
max: props.data[props.data.length-1].date
}
};
else {
return {
// keep on zooming
xaxis: {
min: xaxis.min,
max: xaxis.max
}
}
}
}
}
}