Getting different exit from the loop
I am learning Javascript and am not getting the desired result. I will be helpful if you can correct my thoughts.
This is my simple code:
<script>
window.onload = myFunction ;
function myFunction(){
var i = 0 ;
var counter = 1 ;
while(i < counter){
alert(counter);
counter = counter - 0.1 ;
}
}
</script>
My desired output:
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
But the real conclusion is:
1
0.9
0.8
0.7000000000000001
0.6000000000000001
0.5000000000000001
0.40000000000000013
0.30000000000000016
0.20000000000000015
0.10000000000000014
1.3877787807814457e-16
+3
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1 answer
It has to do with floating point arithmetic. You can concatenate floats using toFixed
Update your code to
window.onload = myFunction ;
function myFunction(){
var i = 0 ;
var counter = 1 ;
while(i < counter){
alert(counter);
counter = (counter - 0.1).toFixed(1) ;
}
}
+5
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