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45 lines (40 loc) · 897 Bytes
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pattern2.js
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45 lines (40 loc) · 897 Bytes
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// let n = 4
// let i,j
// for(i=0;i<n;i++){
// for(j=0;j<n-i-1;j++){
// process.stdout.write(" ")
// }
// process.stdout.write(" * ")
// if(i>0){
// for(j=0;j<2*i-1;j++){
// process.stdout.write(" ")
// }
// process.stdout.write(" * ")
// }
// console.log()
// }
// for(i=n-2;i>=0;i--){
// for(j=0;j<n-i-1;j++){
// process.stdout.write(" ")
// }
// process.stdout.write(" * ")
// if(i>0){
// for(j=0;j<2*i-1;j++){
// process.stdout.write(" ")
// }
// process.stdout.write(" * ")
// }
// console.log()
// }
let n = 4
for(let i=-n;i<=n;i++){
for(let j=-n;j<n;j++){
if(Math.abs(i) +Math.abs(j)==n){
process.stdout.write(" * ")
}
else{
process.stdout.write(" ")
}
}
console.log()
}