Method map

src/danfojs-base/core/series.ts:999–1026

(callable: mapParam, options?: { inplace?: boolean })

    */
    map(callable: mapParam, options?: { inplace?: boolean }): Series
    map(callable: mapParam, options?: { inplace?: boolean }): Series | void {
        const { inplace } = { inplace: false, ...options }

        const isCallable = utils.isFunction(callable);

        const data = (this.values as ArrayType1D).map((val: any, i: number) => {
            if (isCallable) {
                return (callable as Function)(val, i);
            } else if (utils.isObject(callable)) {
                if (val in callable) {
                    //@ts-ignore
                    return callable[val];
                } else {
                    return val
                }
            } else {
                throw new Error("Param Error: callable must either be a function or an object");
            }
        });

        if (inplace) {
            this.$setValues(data)
        } else {
            const sf = this.copy();
            sf.$setValues(data)
            return sf;
        }
    }

    /**
       * Applies a function to each element of a Series