Snippet Zone

Guess the semi-golf

```
a=3217+'';a=[a];console.log(a[0][2])
```

Try and guess what would be logged here…

November 11, 2021

// arrays // codegolf // humor // javascript // strings

Remove from String

```
x='hello'
```
```
x.replace(/h/g,'') // 17 bytes
```
```
x.split`h`.join`` // 16 bytes
```
```
x.replaceAll('h','') // 19 bytes
```

Another fun one from the great javascript golfing tips stackexchange thread.

This one comes from user emanresu-a and this answer.

November 8, 2021

// golfed // hacks // javascript // strings

100 35 Ways

```
const _100 = 100;
```
```
 
```
```
const count = i => {
```
```
  document.body.innerHTML += 
```

    _100.toString(i) + ` :: ... ${i}<br>`

```
  i++ < 36 && count(i)
```
```
}
```
```
count(2)
```

Display 100 in many bases from binary to base 36… Today is the 100th post on Snippet Zone.

November 1, 2021

// javascript // math // strings

Match A or B

```
const aOrB = /\b(a|b)\b/g;
```
```
 
```

const fn = '(b > .5) ? (max(a, 2. * (b - .5))) : (min(a, 2. * b))'

```
 
```
```
const r = fn.replace(aOrB, '$1.r');
```
```
const g = fn.replace(aOrB, '$1.g');
```
```
const b = fn.replace(aOrB, '$1.b');
```
```
 
```
```
console.log(r);
```
```
console.log(g);
```
```
console.log(b);
```

Match an a or b, but not when it’s part of another word.

Found myself needing this for auto-generating some shaders recently.

October 30, 2021

// javascript // strings

Find a String Naive Hill Climbing

```
const target = 'snippetzone'.split``;
```
```
const leng = target.length;
```

const alphabet = 'abcdefghijklmnopqrstuvwxyz'.split``;

```
 
```
```
function randomString() {
```
```
  let str = [];
```
```
  for (let i = 0; i < leng; i++) {
```
```
    str.push(randomChar());
```
```
  }
```
```
  return str;
```
```
}
```
```
 
```
```
function randomChar() {
```

  return alphabet[Math.floor(Math.random() * alphabet.length)];

```
}
```
```
 
```
```
let iterations = 0;
```
```
const search = randomString();
```
```
const indices = [];
```

for (var i = 0; i < leng; i++) indices.push(i);

```
let found = false;
```
```
 
```
```
function loop() {
```
```
  for (let i = 0; i < 10; i++) {
```
```
    if (indices.length > 0) {
```

      let ii = Math.floor(Math.random() * indices.length);

```
      let index = indices[ii];
```
```
      search[index] = randomChar();
```

      if (search[index] == target[index]) {

```
        indices.splice(ii, 1);
```
```
      }
```
```
      console.log(search.join(','));
```
```
      iterations++;
```
```
    } else {
```

      console.log('found after', iterations, 'iterations');

```
      found = true;
```
```
      break;
```
```
    }
```
```
  }
```
```
 
```
```
  if (!found) {
```
```
    requestAnimationFrame(loop);
```
```
  }
```
```
}
```
```
loop();
```

This is a port of an old snippet of mine. It naively and randomly finds a target string. In this case the string “snippetzone”.

It’s fun to see it randomly perform better/worse…


e,f,k,w,q,s,o,h,n,r,f
e,f,k,w,q,s,o,h,n,r,u
k,f,k,w,q,s,o,h,n,r,u
k,f,k,w,q,o,o,h,n,r,u
k,f,k,w,q,o,o,v,n,r,u
k,f,k,w,q,v,o,v,n,r,u
...
s,e,i,p,p,e,t,z,o,n,e
s,v,i,p,p,e,t,z,o,n,e
s,h,i,p,p,e,t,z,o,n,e
s,d,i,p,p,e,t,z,o,n,e
s,s,i,p,p,e,t,z,o,n,e
s,e,i,p,p,e,t,z,o,n,e
s,g,i,p,p,e,t,z,o,n,e
s,q,i,p,p,e,t,z,o,n,e
s,m,i,p,p,e,t,z,o,n,e
s,w,i,p,p,e,t,z,o,n,e
s,g,i,p,p,e,t,z,o,n,e
s,x,i,p,p,e,t,z,o,n,e
s,t,i,p,p,e,t,z,o,n,e
s,o,i,p,p,e,t,z,o,n,e
s,e,i,p,p,e,t,z,o,n,e
s,k,i,p,p,e,t,z,o,n,e
s,p,i,p,p,e,t,z,o,n,e
s,b,i,p,p,e,t,z,o,n,e
s,n,i,p,p,e,t,z,o,n,e
found after 176 iterations

October 27, 2021

// javascript // math // speed-coded // strings

Older Posts

Newer Posts

Guess the semi-golf

Remove from String

100 35 Ways

Match A or B

Find a String Naive Hill Climbing

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