in core/utils.js [173:211]
defaultStringifier(pattern, obj) {
const objType = typeof obj;
switch (objType) {
case "string":
return obj;
case "number":
return exports.number.format(obj, pattern);
case "function":
return obj.toString();
case "symbol":
return obj.toString();
case "boolean":
return obj ? "true" : "false";
case "undefined":
return "undefined";
case "object":
default:
if (obj === null) {
return "null";
}
if (obj instanceof Date) {
return exports.date.format(obj, pattern);
}
if (exports.isFunction(obj["toString"]) && obj.toString !== Object.prototype.toString) {
return obj.toString();
}
return JSON.stringify(obj, null, 4);
}
},