Question

我想减少NodeJS服务器内存数组的大小。

我只想发送＆＃39;标题＆＃39;数组中的每个对象，减少网络流量。我在服务器上有这个数组：

var lotOfThings = [
  {name: 'Watson', role: 'Mod', lotOfData: ... },
  {name: 'Sherlock', role: 'Admin', lotOfData: ...}
];

我想从lotOfData中的所有对象中删除lotOfThings，然后仅向用户发送：

  {name: 'Watson', role: 'Mod'},
  {name: 'Sherlock', role: 'Admin'}

如何以良好的表现实现这一目标？

Answer 1

普通JS：

<form method="POST" action="{{ route('postPasswordReset') }}" data-abide novalidate>
                        {!! csrf_field() !!}
                        @if (Session::has('status'))
                            <p>Password Recovery:</p>
                            <div data-alert class="callout success radius">
                                <i class="fa fa-thumbs-up fa-lead"></i> {{ Session::get('status') }}
                            </div>
                        @else
                            <p>Please enter your email address to recover password.</p>
                            <div data-abide-error class="alert callout" style="display: none;">
                                <p><i class="fi-alert"></i> There are some errors in your form.</p>
                            </div>
                            <div class="row">
                                <div class="small-12 columns">
                                    <label>Email Address
                                        <input type="email" name="email" placeholder="Please enter your email address" required>
                                    </label>
                                </div>
                            </div>

                            <div>
                                <button class="button small radius expanded success btn-block" type="submit">
                                    Send Password Reset Link
                                </button>
                            </div>
                        @endif
                        <div>
                            <a href="{{ route('login') }}">Back to Login Page</a>
                        </div>
                    </form>

Answer 2

使用underscore.js

_.map(lotOfThings, 
    function(thing) {
        return { name: thing.name, role: thing.role };
    }
);

切割对象数组上的对象时的最高性能

2 个答案: