Chore: Remove lodash (#14287)

* Chore: Update table to ^6.0.9

* Chore: Remove lodash.last

lodash.last(array)  ->  array[array.length - 1]

* Chore: Remove lodash.get

v = lodash.get(a, "b.c")  ->  if (a && a.b && a.b.c) v = a.b.c

* Chore: Remove lodash.noop

lodash.noop  ->  () => {}

* Chore: Remove lodash.union

https://exploringjs.com/impatient-js/ch_sets.html#union-a-b

* Chore: Remove lodash.intersection

https://exploringjs.com/impatient-js/ch_sets.html#intersection-a-b

* Chore: Remove lodash.findLast

lodash.findLast(array)  ->  [...array].reverse().find(_ =>_)

* Chore: Remove lodash.overSome

* Chore: Remove lodash.isPlainObject

* Chore: Remove lodash.isString

lodash.isString(str)  ->  typeof str === "string";

* Chore: Remove lodash.range

* Chore: Remove lodash.sortedLastIndex

https://www.30secondsofcode.org/js/s/sorted-last-index

* Chore: Remove lodash.sortedIndexBy

https://www.30secondsofcode.org/js/s/sorted-index-by

* Chore: Remove lodash.sample

https://www.30secondsofcode.org/js/s/sample

* Chore: Remove lodash.flatMap

* Chore: Remove lodash.flatten

* Chore: Remove lodash.template

* Chore: Remove lodash.escapeRegExp

Add the escape-string-regexp package

* Chore: Remove lodash.isEqual

Add the fast-deep-equal package

* Chore: Remove lodash.merge

Add the deep-extend package

* Chore: Remove lodash.cloneDeep

Add the clone package

* Chore: Remove lodash.omit

Add the omit package

* Chore: Remove lodash.upperFirst

Add the upper-case-first package

* Chore: Remove lodash.memoize

Add the fast-memoize package

* Chore: Remove lodash.mapValues

Add the map-values package

* Chore: Remove lodash.flatten

* Chore: Remove lodash

* Chore: Replace arrays.flat()

* Chore: Replace clone with rfdc

* Chore: Add comment about map-values

* Chore: Remove omit dependency

* Chore: Remove rfdc dependency

* Chore: Remove upper-case-first dependency

* Chore: Remove fast-memoize dependency

* Chore: Apply suggestions in lib/linter/node-event-generator.js

Co-authored-by: Milos Djermanovic <milos.djermanovic@gmail.com>

* Chore: Add tests for upperCaseFirst

* Chore: Remove map-values dependency

* Chore: Apply review suggestions

* Chore: Upgrade deep-extend to ^0.6.0

* Chore: Replace deep-extend dependency with lodash.merge

* Chore: Apply review suggestion

* Chore: Simplify search code

* Chore: Apply review suggestions

Co-authored-by: Milos Djermanovic <milos.djermanovic@gmail.com>

Author: stephenwade

bin/eslint.js

@@ -66,11 +66,8 @@ function readStdin() {
  */
 function getErrorMessage(error) {
 
-    // Lazy loading because those are used only if error happened.
-    const fs = require("fs");
-    const path = require("path");
+    // Lazy loading because this is used only if an error happened.
     const util = require("util");
-    const lodash = require("lodash");
 
     // Foolproof -- thirdparty module might throw non-object.
     if (typeof error !== "object" || error === null) {
@@ -80,14 +77,7 @@ function getErrorMessage(error) {
     // Use templates if `error.messageTemplate` is present.
     if (typeof error.messageTemplate === "string") {
         try {
-            const templateFilePath = path.resolve(
-                __dirname,
-                `../messages/${error.messageTemplate}.txt`
-            );
-
-            // Use sync API because Node.js should exit at this tick.
-            const templateText = fs.readFileSync(templateFilePath, "utf-8");
-            const template = lodash.template(templateText);
+            const template = require(`../messages/${error.messageTemplate}.js`);
 
             return template(error.messageData || {});
         } catch {

docs/developer-guide/code-path-analysis.md

@@ -195,8 +195,6 @@ bar();
 ### To check whether or not this is reachable
 
 ```js
-var last = require("lodash").last;
-
 function isReachable(segment) {
     return segment.reachable;
 }
@@ -215,7 +213,7 @@ module.exports = function(context) {
 
         // Checks reachable or not.
         "ExpressionStatement": function(node) {
-            var codePath = last(codePathStack);
+            var codePath = codePathStack[codePathStack.length - 1];
 
             // Checks the current code path segments.
             if (!codePath.currentSegments.some(isReachable)) {
@@ -239,8 +237,6 @@ So a rule must not modify those instances.
 Please use a map of information instead.
 
 ```js
-var last = require("lodash").last;
-
 function hasCb(node, context) {
     if (node.type.indexOf("Function") !== -1) {
         return context.getDeclaredVariables(node).some(function(v) {
@@ -285,8 +281,10 @@ module.exports = function(context) {
 
         // Manages state of code paths.
         "onCodePathSegmentStart": function(segment) {
+            var funcInfo = funcInfoStack[funcInfoStack.length - 1];
+
             // Ignores if `cb` doesn't exist.
-            if (!last(funcInfoStack).hasCb) {
+            if (!funcInfo.hasCb) {
                 return;
             }
 
@@ -304,7 +302,7 @@ module.exports = function(context) {
 
         // Checks reachable or not.
         "CallExpression": function(node) {
-            var funcInfo = last(funcInfoStack);
+            var funcInfo = funcInfoStack[funcInfoStack.length - 1];
 
             // Ignores if `cb` doesn't exist.
             if (!funcInfo.hasCb) {