The loop in the JS scripting language

JS scripting language: Looping: (Looping through a function (executing a piece of code))

Four elements: Cyclic initial value cyclic condition state change loop body

for (exhaustive iteration)

While

Example: (exhaustive) with 7-related numbers

<script type= "Text/javascript" >

var s= "";

for (Var i=0;i<100;i++)

{if (i%7==0| | i%10==7| | Pareint (i%10==7)

{

s=s+i+ "|"

}

} alert (s);

(iteration) 100 The sum of the inner numbers

var sum=0;

for (Var i=0;i<100;i++)

{

Sum=sum+i; (sum+=i)

} alert (sum);

Basketball fell from five meters, each bounce height is the original 30%, after several heights of 0.1m

var g=5; var c=0;

while (true)

{

g=g*0.3;c++;

if (g<0.1)

{break;

}

} alert (c);

</script>

The loop in the JS scripting language