Example of loop in js

Multiplication statement // for (i1; I & lt; 9; I ++) {// control row // for (j1; j & lt; I; j ++) {// control // document. write (I + & quot; * & quot; + j + & quot; + (I * j) + & quot; & amp; nbsp & quot ;); ///} // document. write (& quot; & lt

 

Multiplication

// For (I = 1; I <= 9; I ++) {// control row

 

// For (j = 1; j <= I; j ++) {// Control

 

// Document. write (I + "*" + j + "=" + (I * j) + "");

//}

// Document. write ("
");

 

//}

/*

*

***

*****

 

*/

 

// For (I = 1; I <= 5; I ++) {// control row

 

// For (j = 1; j <= 2 * I-1; j ++) {// Control

 

// Document. write ("*");

//}

// Document. write ("
");

 

//}

 

 

 

/*

*

***

*****

*******

*********

***********

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

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

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

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

 

 

*/

// For (I = 1; I <= 10; I ++ ){

//// Print space

// For (t = 1; t <= 10-I; t ++ ){

 

// Document. write ("");

 

//}

// For (j = 1; j <= 2 * I-1; j ++ ){

 

 

// Document. write ("*");

 

 

//}

// Document. write ("
");

//}

 

 

// Print the diamond Graph

 

 

// For (I = 1; I <= 5; I ++ ){

//// Print space

// For (t = 1; t <= 5-i; t ++ ){

 

// Document. write ("");

 

//}

// For (j = 1; j <= 2 * I-1; j ++ ){

 

 

// Document. write ("*");

 

 

//}

// Document. write ("
");

//}

 

 

/*

Number of rows, number of stars, number of spaces

*/

For (I = 4; I> = 1; I --){

// For (t = 4; t> = I; t --)

For (t = 5-i; t> = 1; t --)

{

 

Document. write ("");

 

}

For (j = 1; j <= 2 * I-1; j ++ ){

Document. write ("*");

 

 

}

Document. write ("
");

 

}

 

 

 

You can use the for loop to implement some related images.

 

For example, print the diamond:

*

***

*****

*******

*********

*******

*****

***

*

// Print the diamond Graph

 

 

For (I = 1; I <= 5; I ++ ){

// Print space

For (t = 1; t <= 5-i; t ++ ){

 

Document. write ("");

 

}

For (j = 1; j <= 2 * I-1; j ++ ){

 

 

Document. write ("*");

 

 

}

Document. write ("
");

}

 

 

/*

Number of rows, number of stars, number of spaces

*/

For (I = 4; I> = 1; I --){

// For (t = 4; t> = I; t --)

For (t = 5-i; t> = 1; t --)

{

 

Document. write ("");

 

}

For (j = 1; j <= 2 * I-1; j ++ ){

Document. write ("*");

 

 

}

Document. write ("
");

 

}

 

 

 

 

/*

*

**

**

**

*****

*/

For (I = 1; I <= 5; I ++)

{

// Print space

For (t = 1; t <= 5-i; t ++)

{

Document. write ("");

}

 

For (j = 1; j <= 2 * I-1; j ++)

{

// Print other rows except the last row, with spaces in the first and last columns.

If (I <5)

{

If (j = 1 | j = 2 * i-1)

Document. write ("*");

Else

Document. write ("");

}

Else // last line, odd *, even space

{

If (j % 2! = 0)

Document. write ("*");

Else

Document. write ("");

}

}

Document. write ("
");

}

 

 

 

 

Print triangle

 

Var k = prompt ("Enter the number of printed rows :","");

For (var I = 1; I <= k; I ++)

{

For (varj = 0; j

{

Document. write ("*");

}

Document. write ("
");

}

Script

 

From Aweijun360