4 examples of 'javascript array distinct' in JavaScript

473
function distinct(arr) {
474
  throw new Error('Not implemented');
475
}

388
distinct(data){
389
  this._options.distinct = data;
390
  if (helper.isString(data)) {
391
    this._options.field = data;
392
  }
393
  return this;
394
}

103
function distinct(values) {
104
  var result = [];
105
  for (var i = 0, len = values.length; i < len; ++i) {
106
    var value = values[i];
107
    if (result.indexOf(value) === -1) {
108
      result.push(value);
109
    }
110
  }
111
  return result;
112
}

108
function verify_distinct(values) {
109
    var arr, i, j, k, N;
110
111
    if (values instanceof Array) {
112
        arr = values;
113
    } else if (values instanceof Object) {
114
        arr = [];
115
        for (k in values) {
116
            arr.push(values[k]);
117
        }
118
    } else {
119
        throw "verify_distinct: Invalid argument.";
120
    }
121
122
    for (i = 0, N = arr.length; i < N; ++i) {
123
        for (j = 0; j < i; ++j) {
124
            if (arr[i] === arr[j]) {
125
                return false;
126
            }
127
        }
128
    }
129
    return true;
130
}