[JS] CUSTOM FORMAT

function customFormat(str) {
    try {
        let dot = str.match(/./g)
        let split = str.split('.')
        let getF = parseInt(split[1].substring(1, -split[1].length))
        let e
        if (dot.filter(v => v == '.').length == 1) e = 'K'
        if (dot.filter(v => v == '.').length == 2) e = 'M'
        if (dot.filter(v => v == '.').length == 3) e = 'B'
        if (getF != 0) {
            var output = split[0] + '.' + getF + e
        } else {
            var output = split[0] + e
        } return output
    } catch {
        return str
    }
}