gulp dest()未输出文件

我很难找到 gulp.dest 在任何地方输出任何东西。我特别希望只输出到项目的根目录(我劫持了一个ASP.NET核心项目,仅用于typescript开发)。我真的很感谢你帮我 dest 做我想做的。这是我当前的gulpfile.js:

/// <binding AfterBuild="build" Clean="clean" ProjectOpened="watch" />

"use strict";

const del = require("del"),
    gulp = require("gulp"),
    gulpConcat = require("gulp-concat"),
    gulpRename = require("gulp-rename"),
    gulpTerser = require("gulp-terser");

gulp.task("concatenate", () => {
    return gulp.src([
        "*.js",
        "!gulpfile.js"
    ])
        .pipe(gulpConcat("concatenated.js"))
        .pipe(gulp.dest("/"));
});

gulp.task("minify", () => {
    return gulp.src("concatenated.js")
        .pipe(gulpTerser())
        .pipe(gulpRename("min.js"))
        .pipe(gulp.dest("/"));
});

gulp.task("clean", () => del([
    "*.js",
    "!gulpfile.js"
]));

gulp.task("build", gulp.series(
    "concatenate",
    "minify"
));

gulp.task("watch", () => {
    gulp.watch([
        "*.ts"
    ], gulp.series(
        "build"
    ));
});