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up vote 1 down vote favorite

I have this array where i add values on click, but i want to check if value is already in array, if it is do nothing. I tried with indexOf but i get same result every time

this.fields.push(this.field);
      this.field = { value: '' };
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up vote 2 down vote accepted

Are you determining if it's in the array by the value property? If so you can use Array.some().

var exists = this.fields.some(function(field) {
  return field.value === this.field.value
});

if (!exists) {
  this.fields.push(this.field);
}
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