Passing object as props to jsx

喜夏-厌秋 提交于 2020-01-28 17:36:33

问题


I have an object contains multiple common key-value props, that I want to pass on to some jsx. Something like this:

const commonProps = {myProp1: 'prop1',myProp2: 'prop2'};
<MyJsx commonProps />

I want this to function as passing individual props:

<MyJsx myProp1={commonProps.myProp1} myProp2={commonProps.myProp2}/>

Is this possible?


回答1:


Is this possible?

Yes, why you think its not possible, but the way you are sending is not correct.

Meaning of <MyJsx commonProps /> is:

<MyJsx commonProps={true} />

So if you don't specify any value by default it will take true. To pass the object you need to write it like this:

const commonProps = {myProp1: 'prop1',myProp2: 'prop2'};
<MyJsx commonProps={commonProps} />

Update:

If you have an object and wants to pass all the properties as separate prop, write it like this:

<MyJsx {...commonProps} />



回答2:


You can use the spread operator to do this.

You can simply do <MyJsx {...commonProps} />

Now what all individual properties you have in commonProps will be sent as individual props to MyJsx.




回答3:


You need to use double braces, like this:

messages={{tile:'Message 1'}}

Or to pass many objects:

messages={[{title:'Message 1', name: 'Andrew'}, {title:'Message 2', name: 'Greg'}]}

It's simply JS syntax inside braces.

A final component might look like this

<Chat title="Some str" messages={[{title:'Message 1', name: 'Andrew'}, {title:'Message 2', name: 'Greg'}]} />



回答4:


You can pass props as object in two ways:-

const commonProps = {myProp1: 'prop1',myProp2: 'prop2'};

1.Using spread Operator:-

<MyJsx {...commonProps} />

2.Simply pass that props:-

<MyJsx commonProps = {commonProps ? commonProps : true} />


来源:https://stackoverflow.com/questions/49081549/passing-object-as-props-to-jsx

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