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 Write a programme using  loop for star pattern;

<html>

<head><title>javascript</title>

<script>

function loop(){

let n = 8; let text ;

for (let i = 1; i <= n; i++) {

for (let j = 0; j < i; j=j+2) {

text+= "*";

}

text+= "\n";

}

}

document.getElementById("demo").innerHTML=loop();

</script>

</head>

<body>

<p id="demo"></p>

</body>

</html>

             

output:-

*

***

*****

*******

*********

***********

*************

***************

 Write a programme using loop for downward star pattern;

<html>

<head><title>javascript</title>

<script>

function loop(){

let n = 5; let string ;

for (let i = 0; i <= n; i++) {

for (let j = 0; j < n-i; j=j+4;) {

string += "*";

}

string += "\n";

}

}

document.getElementById("demo").innerHTML=loop();

</script>

</head>

<body>

<p id="demo"></p>

</body>

</html>

OUTPUT

********************

****************

************

********

****