How to use js to write such a graph, you need to set up with odd number of rows, solving

CodePudding user response:

 var line=4; 
Var arr=[]; 
for(var i=0; iIf (I==0) 
{
Arr. Push (repeat (' * ', line * 2-1)); 
} else {
Arr. Push (repeat repeat (' ', I) + (' * '(line - I) * 2-1) + repeat ('', I)) 
Arr. Unshift (repeat repeat (' ', I) + (' * '(line - I) * 2-1) + repeat ('', I)) 
} 
//arr. Push [] 
} 
The console. The log (arr. Join (' \ n ')) 
The function repeat (STR, times) {
Return the new Array (+ 1) times. Join (STR); 
} 

CodePudding user response:

Why the console output is vertical, to the document. The write becomes a row

CodePudding user response:

Document. Write the input to the page, this is HTML
If the document must be used. The write, then add the pre or XMP at before and after the tag

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

So you can according to the text format shows