Is there a simpler way to retrieve an object property in JavaScript using a variable?
The following method does not work:
var element_id = this.data().element_type + 'id';
Instead of the above, here's a more streamlined approach:
var element_id;
if ( element_type == 'assignment' ) {
element_id = this.data().assignmentid;
} else if ( element_type == 'question' ) {
element_id = this.data().questionid;
} else {
element_id = this.data().answerid;
}
To accomplish this task, follow these steps:
let id = this.data()[element_type + 'id'];
This method offers an alternative way to access properties using a string to indicate the property name.
The reason your original approach failed is because this.data().element_type + 'id' interprets as evaluating this.data().element_type first and then appending 'id' to it.
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