触发反应选择 onchange

Question

What is the best way to trigger onchange even on a select field in react?

Unfortunately, I have to use plain javascript to format and set a value programmatically but that doesn't fire React events.

What's the best way to fire those events?

Say I want to set a value of my select manually by document.querySelector(selector).value = value; how can I trigger the onchange event?

Edit: clarifying the question

Answer 1

Its same as in normal JS and HTML

<select 
        value={this.state.selectValue} 
        onChange={this.handleChange} 
      >

So, handleChange is the function inside that react component itself. You can update component's state inside handleChange function. Make sure you use value={this.state.selectValue} too. This way you are binding state to the select component.