// Map
Map.prototype._shallowCopy = function () {
let oNewMap = new Map();
for (let [key, val] of this.entries()) {
oNewMap.set(key, val);
}
return oNewMap;
}
Map.prototype._get = function (key, defaultValue) {
let res = this.get(key);
if (res !== undefined) {
return res;
}
return defaultValue;
}
Map.prototype._toString = function () {
// Default .toString() gives nothing useful
let sRes = "{ ";
for (let [k, v] of this.entries()) {
sRes += (typeof k === "string") ? '"' + k + '": ' : k.toString() + ": ";
sRes += (typeof v === "string") ? '"' + v + '", ' : v.toString() + ", ";
}
sRes = sRes.slice(0, -2) + " }"
return sRes;
}
Map.prototype._update = function (dDict) {
for (let [k, v] of dDict.entries()) {
this.set(k, v);
}
}
Map.prototype._updateOnlyExistingKeys = function (dDict) {
for (let [k, v] of dDict.entries()) {
if (this.has(k)){
this.set(k, v);
}
}
}