snippet.md

```javascript
var flatten = function(data, prefix) {
  var output = [];
  var nvl = (s) => (s ? s : "");
  var pNvl = (s) => (s ? (s + ".") : "");
  if (typeof data != 'object') {
    return [{
      name: prefix,
      value: data
    }];
  } else {
    for (var k in data) {
      switch (typeof data[k]) {
      case 'string':
      case 'number':
        output.push({
          'name': pNvl(prefix) + k,
          'value': data[k]
        });
        break;
      case 'object':
        if (data[k].length != void(0)) {
          // array
          for (var i in data[k]) {
            $.merge(output, flatten(data[k][i], pNvl(prefix) + k + '[' + i + ']'));
          }
        } else {
          // object
          $.merge(output, flatten(data[k], pNvl(prefix) + k));
        }
        break;
      }
    }
  }
  return output;
}
```

Test cases:
```javascript
(()=>{
  cases = [
    { input: {a:1}, expected: 'a=1' },
    { input: {a:[1]}, expected: 'a[0]=1' },
    { input: {a:[1],b:0}, expected: 'a[0]=1&b=0' },
    { input: {a:[1,2]}, expected: 'a[0]=1&a[1]=2' },
    { input: {a:[1,2],b:{c:1}}, expected: 'a[0]=1&a[1]=2&b.c=1' },
    { input: {a:[0],b:{c:{d:1}}}, expected: 'a[0]=0&b.c.d=1' },
    { input: {a:[{n:1},{n:2}]}, expected: 'a[0].n=1&a[1].n=2' },
    { input: {a:[{n:1},{n:[1,2]}]}, expected: 'a[0].n=1&a[1].n[0]=1&a[1].n[1]=2' },
    { input: {a:[{n:1},{n:[1,2],m:[3,4],o:{a:1}}],b:{q:[1]}}, expected: 'a[0].n=1&a[1].n[0]=1&a[1].n[1]=2&a[1].m[0]=3&a[1].m[1]=4&a[1].o.a=1&b.q[0]=1' },
  ];
  for (var i in cases) {
    if ( ( actual = decodeURIComponent( $.param( flatten(cases[i].input) ) ) ) != cases[i].expected ) {
      throw "\nExpected: " + cases[i].expected + "\n" + "Actual: " + actual;
    } else {
      console.log("CASE:" + JSON.stringify(cases[i].input) + " [PASS]");
    }
  }
})();
```