postgrejs/esm/util/stringify-arrayliteral.js

Professional PostgreSQL client NodeJS

import { arrayCalculateDim } from './array-calculatedim.js';
export function stringifyArrayLiteral(value, options, encode) {
    const dim = arrayCalculateDim(value);
    const writeDim = (arr, level) => {
        const elemCount = dim[level];
        const out = [];
        for (let i = 0; i < elemCount; i++) {
            let x = arr && arr[i];
            if (level < dim.length - 1) {
                if (x != null && !Array.isArray(x))
                    x = [x];
                out.push(writeDim(x, level + 1));
                continue;
            }
            // if value is null
            if (x == null) {
                out.push('NULL');
                continue;
            }
            if (Array.isArray(x)) {
                out.push(stringifyArrayLiteral(x, options, encode));
                continue;
            }
            if (encode)
                x = encode(x, options || {});
            out.push(escapeArrayItem('' + x));
        }
        return '{' + out.join(',') + '}';
    };
    return writeDim(value, 0);
}
function escapeArrayItem(str) {
    return '"' + str.replace(/\\/g, '\\\\').replace(/"/g, '\\"') + '"';
}