@naturalcycles/nodejs-lib/dist/stream/transform/transformToArray.js

Standard library for Node.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const stream_1 = require("stream");
/**
 * Will collect all stream results in the array (keeping it in memory) and emit in the end as one result.
 */
function transformToArray(opt = {}) {
    const res = [];
    return new stream_1.Transform({
        objectMode: true,
        ...opt,
        transform(chunk, _encoding, cb) {
            res.push(chunk);
            // callback to signal that we processed input, but not emitting any output
            cb();
        },
        final(cb) {
            // tslint:disable-next-line:no-invalid-this
            this.push(res);
            cb();
        },
    });
}
exports.transformToArray = transformToArray;
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