score:8
you will need to bind those functions to the context of the component. inside constructor
you will need to do this:
export default class logincard extends react.component {
constructor(props) {
super(props);
this.handleloginbtnclicked = this.handleloginbtnclicked.bind(this);
this.checkinputvalidation = this.checkinputvalidation.bind(this);
}
//this is the method handleloginbtnclicked
handleloginbtnclicked() {
...
}
//this is the method checkinputvalidation
checkinputvalidation() {
...
}
...
..
.
}
score:2
where are you binding the handleloginbtnclicked
? you may be losing the functions context and losing the meaning of the special variable this
. react will handle and trigger the onclick
event, calling the function from a different context which is why it has been lost.
you should use the following syntax to create a new bound function to add as the event listener for the onclick event. this will ensure that handleloginbtnclicked
's context is not lost.
<element onclick={this.handleloginbtnclicked.bind(this)}>
Source: stackoverflow.com
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