FormFieldOptions
The set of enumerated dimensions. Can be either an array or an object. use array as retrospective achievements (later in this article, the array will be discussed).
- Array
If an array was passed, then each element of this array should look like this:
interface OptionRow{
label: string,
value: any
}
interface OptionRow{
label: string,
value: any
}
Example values
[
{label: 'Green color', value: 'green'},
{label: 'Red color', value: 'red'}
]
[
{label: 'Green color', value: 'green'},
{label: 'Red color', value: 'red'}
]
label
- Type:
string
The text label to be displayed as a title.
value
- Type:
any
The value that the cell will be set to.
Why an array is better
You will not get confused, where is the label and where is the value. In the case of an object, there is a possibility that you have to constantly look at the documentation to clarify the location of the label: on the right or on the left.
- Object
Let's move on to the object. Remember: on the left is the value, on the right is the label (title). When passed, an object of the following type is expected:
interface OptionObject {
[value: string]: string
}
interface OptionObject {
[value: string]: string
}
Example
{
"green": "Green color",
"red": "Red color"
}
{
"green": "Green color",
"red": "Red color"
}
However, in this case, we run into the following problem: the value can be only a string. Even the given number as a value - will be automatically converted by JavaScript to a string. There is one situation when it is convenient use or store the value in an object. To do this, we have provided a function for converting an object to an array.
Why is the value on the left?
The main reason for this is that the key in an object is unique. That is, you cannot create an object with two identical keys. It was this validation that prompted the use of the key as value
and the value of the key as label
.