Quasar table Threshold Validation not working correctly

[akashramtohul4]

Hello friends

I have a problem with over lapping range, the condition is that if i have a Threshold set i should not be able to enter a value that within that range. for example : Threshold start is 0 and Threshold end is 1000 i should not be able to enter another row with a Threshold that is within 0 and 1000.

Please check the code. Note that its working for values above 1000. i dont know where i have made a mistake

https://codepen.io/akashramtohul4/pen/poeaRgL