HR MODULE CONFIGURATION 

-Add Custom Fields in Employees Doctype 
-Add Client Scripts 
-Employees Work Experience in Years 
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Codes to Enter in Scripts:
--->> BUILD -->DOCTYPE --> SEARCH "EMPLOYEE"
--->> BUILD -->CLIENT SCRIPT -->ADD NEW --> DOCTYPE=EMPLOYEE-->ENTER CODE
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To Calculate Work Experienc:

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frappe.ui.form.on('Employee', {
    onload: function (frm) {
        frm.add_fetch('date_of_joining', 'date_of_joining', 'date_of_joining');
    },
    refresh: function (frm) {
        calculateWorkExperience(frm);
    },
    date_of_joining: function (frm) {
        calculateWorkExperience(frm);
    },
});

function calculateWorkExperience(frm) {
    if (frm.doc.date_of_joining) {
        const dateOfJoining = new Date(frm.doc.date_of_joining);
        const currentDate = new Date();
        const diffInMilliseconds = currentDate - dateOfJoining;
        const years = Math.floor(diffInMilliseconds / (1000 * 60 * 60 * 24 * 365));
        const months = Math.floor((diffInMilliseconds % (1000 * 60 * 60 * 24 * 365)) / (1000 * 60 * 60 * 24 * 30));
        const fractionalYears = (years + months / 12).toFixed(2);
        frm.set_value('work_experience', parseFloat(fractionalYears));
    } else {
        frm.set_value('work_experience', '');
    }
}