opacity: Number

Sets opacity of stripLine.

Default: null
Example: .1, .5, 1 etc. 
var  chart =  new  CanvasJS.Chart("container",
{
 .
 .
axisY:{
    stripLines: [{
        .
        value:12,
        opacity: .2
        .
    }]
},
 .
 .
});
chart.render();
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