So, I have a function (i am workng with jquery ui and running this on drag event, though for this question I don't think that is important)
Basically I have the following repetitive if else
code:
And I am curious if there is a way to write this in one line(ish) and not have a 100 else if
lines if I want to be able to support 100 steps (divisions of a total slider value).
var thisPos = $( ".sliderknob" ).position();
var x = thisPos.left - window['sliderhome'].left;
console.log("(" + x + ")");
l = Object.keys(obj_frameindex).length;
framefraction = 290/l;
if (x>-1 && x<framefraction){
console.log('frame 1');
frameselector(0);
$('#framecounter').html("FRAME " + 1);
}
else if (x>framefraction && x<framefraction*2){
console.log('frame 2');
frameselector(1);
$('#framecounter').html("FRAME " + 2);
}
else if (x>framefraction*2 && x<framefraction*3){
console.log('frame 3');
frameselector(2);
$('#framecounter').html("FRAME " + 3);
}
else if (x>framefraction*3 && x<framefraction*4){
console.log('frame 4');
frameselector(3);
$('#framecounter').html("FRAME " + 4);} //etc..........
Showing only 4 here, but imagine it goes on...
Any ideas?
Do something like:
if x < 0 { return };
var f = Math.ceil(x / framefraction);
console.log(`frame` + f);
frameselector(f - 1);
$(`#framecounter`).html("FRAME " + f);
One possible approach:
var frameNo = Math.max(0, Math.floor(x / framefraction)) + 1;
console.log('frame ' + frameNo);
frameselector(frameNo - 1);
$('#framecounter').html('FRAME ' + frameNo);
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