ReactJS根据对象设置动态输入值

Question

I have an Object like this:

And an object like this:

const subjectQuantities = {
      9: 2,
      11: 1,
    };

Where 9 and 11 are similar to the object id of first Object what I want to do is set the value of an input field dynamically so what I did is this:

{ Object.keys(subjects).map((item, i) => (
   <li className="travelcompany-input clearfix" key={i}>
      <span className="input-label">{ subjects[item].name }</span>
         <div className="input-group">
           { subjects[item].id in subjectQuantities ?
            <input className="form-control form-travelcompany-input" type="text" value=*DYNAMIC VALUE* min="0" max="10" />
             : <p>TEST</p>
             }
         </div>
   </li>
))} 

How do I set the value of this input field dynamically based on the value of the subjectQuantities object.

Answer 1

If i understand your question correctly you just need to do {subjectQuantities[item]}

See your example below.

{ Object.keys(subjects).map((item, i) => (
   <li className="travelcompany-input clearfix" key={i}>
      <span className="input-label">{ subjects[item].name }</span>
         <div className="input-group">
           { subjects[item].id in subjectQuantities ?
            <input className="form-control form-travelcompany-input" type="text" value={subjectQuantities[item]} min="0" max="10" />
             : <p>TEST</p>
             }
         </div>
   </li>
))}