In the following list:
empList = ['one','two','finish','one','three']
I am required to evaluate conditions based on empList:
Condition 1: If 'two' appears before 'finish', set this.beforeCheckFlag = true
Condition 2: If 'two' appears after 'finish', set this.afterCheckFlag = true
To efficiently store the relationships between elements, you can utilize the Map object in JavaScript. This allows you to map each element of an array as a key to its corresponding index as a value:
const empList = ['one', 'two', 'finish', 'one', 'three'];
const map = new Map(empList.map((emp, index) => [emp, index]));
// Check if 'two' comes before 'finish' by comparing their indexes
const beforeCheckFlag = map.get('two') < map.get('finish');
console.log(beforeCheckFlag);
// Check if 'two' comes after 'finish' by comparing their indexes
const afterCheckFlag = map.get('two') > map.get('finish');
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