Get the first element to appear

Activity Description

Compare the first occurrence of multiple elements and output the index of the first occurrence

Property Description

Outputs the index

Compares two or more elements in order of appearance, outputs the index of the first element that appears first.

element selector list

Output the set of two element selectors, separated by comma, e.g. {"",""}

Usage Example

Execution steps: Compare two elements to select the first appearing element - output the index of the first appearing element to the variable