@worker-tools/deno-kv-storage
Version:
An implementation of the StorageArea (1,2,3) interface for Deno with an extensible system for supporting various database backends.
41 lines • 1.42 kB
JavaScript
;
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
// This module is browser compatible.
Object.defineProperty(exports, "__esModule", { value: true });
exports.common = void 0;
const separator_js_1 = require("./separator.js");
/** Determines the common path from a set of paths, using an optional separator,
* which defaults to the OS default separator.
*
* ```ts
* import { common } from "https://deno.land/std@$STD_VERSION/path/mod.ts";
* const p = common([
* "./deno/std/path/mod.ts",
* "./deno/std/fs/mod.ts",
* ]);
* console.log(p); // "./deno/std/"
* ```
*/
function common(paths, sep = separator_js_1.SEP) {
const [first = "", ...remaining] = paths;
if (first === "" || remaining.length === 0) {
return first.substring(0, first.lastIndexOf(sep) + 1);
}
const parts = first.split(sep);
let endOfPrefix = parts.length;
for (const path of remaining) {
const compare = path.split(sep);
for (let i = 0; i < endOfPrefix; i++) {
if (compare[i] !== parts[i]) {
endOfPrefix = i;
}
}
if (endOfPrefix === 0) {
return "";
}
}
const prefix = parts.slice(0, endOfPrefix).join(sep);
return prefix.endsWith(sep) ? prefix : `${prefix}${sep}`;
}
exports.common = common;
//# sourceMappingURL=common.js.map