var context = SP.ClientContext.get_current();
var web = context.get_web();
var aFile = web.getFileByServerRelativeUrl("/sites/mySite1/Documents/myFile-2020.pdf");
context.executeQueryAsync(fSucces, fError);


function fSucces(k1){
	console.log("fSucces");
	console.dir(aFile);
	console.dir(k1);
	aFile.recycle();
	context.executeQueryAsync(fSucces2, fError2);
}
function fError(k1){
	console.log("fError");
	console.dir(k1);
	
}

function fSucces2(k1){
	console.log("fSucces");
	console.dir(aFile);
	console.dir(k1);
	
}
function fError2(k1){
	console.log("fError");
	console.dir(k1);
	
}