How to use

identifier

function

in

Array

<p className="login-box-msg">{this.props.loginDesc}</p>
<Form onSubmit={this.handleSubmit}>
  <FormGroup validationState={this.state.errors.identifier && 'error'}>
    <FormControl 
      name="identifier" 
      onChange={this.handleValueChange} />
    <Glyphicon glyph="envelop" className="form-control-feedback" />		
    <HelpBlock>{this.state.errors.identifier}</HelpBlock>
  </FormGroup>
  <FormGroup validationState={this.state.errors.password && 'error'}>