nodejs-polars/bin/lazy/expr/struct.d.ts

Polars: Blazingly fast DataFrames in Rust, Python, Node.js, R and SQL

import { type Expr } from "../expr";
/**
 * Struct functions for Lazy datatframes
 */
export interface ExprStruct {
    /**
     * Access a field by name
     * @param name - name of the field
     */
    field(name: string): Expr;
    /**
     * Access a field by index (zero based index)
     * @param index - index of the field (starts at 0)
     */
    nth(index: number): Expr;
    /**
     * Rename the fields of a struct
     * @param names - new names of the fields
     */
    renameFields(names: string[]): Expr;
    /**
     * Add/replace fields in a struct
     * @param fields - array of expressions for new fields
     */
    withFields(fields: Expr[]): Expr;
}
export declare const ExprStructFunctions: (_expr: any) => ExprStruct;