Method inferDtype

src/danfojs-base/shared/utils.ts:260–271

* Infer data type from an array or array of arrays * @param arr An array or array of arrays

(arr: ArrayType1D | ArrayType2D)

     * @param arr An array or array of arrays
    */
    inferDtype(arr: ArrayType1D | ArrayType2D) {
        const self = this;
        if (this.is1DArray(arr)) {
            return [this.$typeChecker(arr)];
        } else {
            const arrSlice = this.transposeArray(arr.slice(0, config.getDtypeTestLim))
            const dtypes = arrSlice.map((innerArr) => {
                return self.$typeChecker(innerArr as any);
            });
            return dtypes;
        }
    }

    /**
     * Private type checker used by inferDtype function