Profanity filter

index.js

// use the checkifokay function to use. Returns true if okay, false for bad

var badtext = "fuck,bitch,dick,penis,cunt";

function StringBuild(string) {
    this.d = [];
    
}
        StringBuild.prototype.append = function(text) {
            this.d.push(text)
            
        }
        StringBuild.prototype.toString = function() {
            return this.d.join("")
            
        }
function escape(text) {
    
    var keys = "q w e r t y u i o p a s d f g h j k l ; ' z x c v b n m"
    
    var k = keys.split(" ")
    var map = {
        r: true,
        b: true,
        d: true,
        e: true,
        g: true,
        l: true,
        s: true
    }
    var newtext = new StringBuild("");
    for (var i = 0; i < text.length; i ++) {
var char = text.charAt(i)
if (k.indexOf(char) != -1 && (text.charAt(i-1) != char || map[char])) newtext.append(char)
    }
    
    return newtext.toString()
}
function checkIfOkay(text) { 
    var lib = badtext.split(",")
    var watch = "";
    var seq = 0;
    var chance = 3;
    var nonchance = 3
    var co = 0;
    var fo = 0;
    if (text) text = text.toLowerCase()
    text = escape(text)
    var fir = []
    
    for (var i = 0; i < lib.length; i ++) fir.push(lib[i].charAt(0))
    for (var i = 0; i < text.length; i ++) {
        var ch = text.charAt(i)
       if (watch) {
         var c = watch.charAt(seq)
         
         if (seq >= watch.length - 1) {
             return false;
         }
           if (ch == c) {
               seq ++;
               co = 0;
               continue;
           }
           if (co >= chance || fo >= nonchance) {
               watch = "";
               i = ind
               fo = 0;
               co = 0;
               continue;
           }
           co ++;
           if (co == 1) fo ++;
           continue;
       } 
        
        var ind = fir.indexOf(ch,ind + 1)
        if (ind != -1) {
            fo = 0;
            watch = lib[ind]
            seq = 1;
        }
    
        
        
    }
    return true
}