Not looping through for loop – javascript

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As this is a function, make sure to call it with updateMobs();.

I believe mobsBlue and mobsRed are arrays (since you call mobsBlue[b] and you index it), so for your for loop, you want to loop for (var b = 0; b < mobsBlue.length; b++){

As such:

var arr = [1, 2, 3, 4]
for(var i = 0;i < arr.length;i++){
    item = arr[i]
    alert(item)
}

Here is your edited code:

var updateMobs = function(){
    for (var b = 0; b < mobsBlue.length; b++){
        BM = mobsBlue[b]
        BM.x = BM.x - 1

        doCollision(BM, redBase, BM)
        doCollision(BM, debugPlayer, BM)
        console.log("draw1")
        BM.Draw(ctx, false)
    }
    for (var r = 0; r < mobsRed.length; r++){
        RM = mobsRed[r]
        RM.x = RM.x + 1

        doCollision(RM, blueBase, RM)   
        doCollision(RM, debugPlayer, RM)
        console.log("draw2")
        RM.Draw(ctx, false)
        for (var bb = 0; bb < mobsBlue.length; bb++){
            BM = mobsBlue[bb]
            console.log("draw3")
            BM.Draw(ctx, false)
            RM.Draw(ctx, false)
        }

    }

}

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