Remove std/strings/pad.ts because String.prototype.padStart exists (#4564)

std/strings/mod.ts

@@ -2,4 +2,3 @@
 
 export * from "./encode.ts";
 export * from "./decode.ts";
-export * from "./pad.ts";

std/strings/pad.ts

@@ -1,75 +0,0 @@
-// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
-
-/** FillOption Object */
-export interface FillOption {
-  /** Char to fill in */
-  char?: string;
-  /** Side to fill in */
-  side?: "left" | "right";
-  /** If strict, output string can't be greater than strLen*/
-  strict?: boolean;
-  /** char/string used to specify the string has been truncated */
-  strictChar?: string;
-  /** Side of truncate */
-  strictSide?: "left" | "right";
-}
-
-/**
- * Pad helper for strings.
- * Input string is processed to output a string with a minimal length.
- * If the parameter `strict` is set to true, the output string length
- * is equal to the `strLen` parameter.
- * Example:
- *
- *     pad("deno", 6, { char: "*", side: "left" }) // output : "**deno"
- *     pad("deno", 6, { char: "*", side: "right"}) // output : "deno**"
- *     pad("denosorusrex", 6 {
- *       char: "*",
- *       side: "left",
- *       strict: true,
- *       strictSide: "right",
- *       strictChar: "..."
- *     }) // output : "den..."
- *
- * @param input Input string
- * @param strLen Output string lenght
- * @param opts Configuration object
- * @param [opts.char=" "] Character used to fill in
- * @param [opts.side="left"] Side to fill in
- * @param [opts.strict=false] Flag to truncate the string if length > strLen
- * @param [opts.strictChar=""] Character to add if string is truncated
- * @param [opts.strictSide="right"] Side to truncate
- */
-export function pad(
-  input: string,
-  strLen: number,
-  opts: FillOption = {
-    char: " ",
-    strict: false,
-    side: "left",
-    strictChar: "",
-    strictSide: "right",
-  }
-): string {
-  let out = input;
-  const outL = out.length;
-  if (outL < strLen) {
-    if (!opts.side || opts.side === "left") {
-      out = out.padStart(strLen, opts.char);
-    } else {
-      out = out.padEnd(strLen, opts.char);
-    }
-  } else if (opts.strict && outL > strLen) {
-    const addChar = opts.strictChar ? opts.strictChar : "";
-    if (opts.strictSide === "left") {
-      let toDrop = outL - strLen;
-      if (opts.strictChar) {
-        toDrop += opts.strictChar.length;
-      }
-      out = `${addChar}${out.slice(toDrop, outL)}`;
-    } else {
-      out = `${out.substring(0, strLen - addChar.length)}${addChar}`;
-    }
-  }
-  return out;
-}

std/strings/pad_test.ts

@@ -1,73 +0,0 @@
-const { test } = Deno;
-import { assertEquals } from "../testing/asserts.ts";
-import { pad } from "./pad.ts";
-
-test(function padTest(): void {
-  const expected1 = "**deno";
-  const expected2 = "deno";
-  const expected3 = "deno**";
-  const expected4 = "denosorusrex";
-  const expected5 = "denosorus";
-  const expected6 = "sorusrex";
-  const expected7 = "den...";
-  const expected8 = "...rex";
-  assertEquals(pad("deno", 6, { char: "*", side: "left" }), expected1);
-  assertEquals(pad("deno", 4, { char: "*", side: "left" }), expected2);
-  assertEquals(pad("deno", 6, { char: "*", side: "right" }), expected3);
-  assertEquals(
-    pad("denosorusrex", 4, {
-      char: "*",
-      side: "right",
-      strict: false,
-    }),
-    expected4
-  );
-  assertEquals(
-    pad("denosorusrex", 9, {
-      char: "*",
-      side: "left",
-      strict: true,
-      strictSide: "right",
-    }),
-    expected5
-  );
-  assertEquals(
-    pad("denosorusrex", 8, {
-      char: "*",
-      side: "left",
-      strict: true,
-      strictSide: "left",
-    }),
-    expected6
-  );
-  assertEquals(
-    pad("denosorusrex", 6, {
-      char: "*",
-      side: "left",
-      strict: true,
-      strictSide: "right",
-      strictChar: "...",
-    }),
-    expected7
-  );
-  assertEquals(
-    pad("denosorusrex", 6, {
-      char: "*",
-      side: "left",
-      strict: true,
-      strictSide: "left",
-      strictChar: "...",
-    }),
-    expected8
-  );
-  assertEquals(
-    pad("deno", 4, {
-      char: "*",
-      side: "left",
-      strict: true,
-      strictSide: "right",
-      strictChar: "...",
-    }),
-    expected2
-  );
-});