Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use comma method in Best

Best JavaScript code snippet using best

comma-style.js

Source:comma-style.js

1/**2 * @fileoverview Comma style - enforces comma styles of two types: last and first3 * @author Vignesh Anand aka vegetableman4 */5"use strict";6const astUtils = require("./utils/ast-utils");7//------------------------------------------------------------------------------8// Rule Definition9//------------------------------------------------------------------------------10module.exports = {11    meta: {12        type: "layout",13        docs: {14            description: "enforce consistent comma style",15            category: "Stylistic Issues",16            recommended: false,17            url: "https://eslint.org/docs/rules/comma-style"18        },19        fixable: "code",20        schema: [21            {22                enum: ["first", "last"]23            },24            {25                type: "object",26                properties: {27                    exceptions: {28                        type: "object",29                        additionalProperties: {30                            type: "boolean"31                        }32                    }33                },34                additionalProperties: false35            }36        ],37        messages: {38            unexpectedLineBeforeAndAfterComma: "Bad line breaking before and after ','.",39            expectedCommaFirst: "',' should be placed first.",40            expectedCommaLast: "',' should be placed last."41        }42    },43    create(context) {44        const style = context.options[0] || "last",45            sourceCode = context.getSourceCode();46        const exceptions = {47            ArrayPattern: true,48            ArrowFunctionExpression: true,49            CallExpression: true,50            FunctionDeclaration: true,51            FunctionExpression: true,52            ImportDeclaration: true,53            ObjectPattern: true,54            NewExpression: true55        };56        if (context.options.length === 2 && Object.prototype.hasOwnProperty.call(context.options[1], "exceptions")) {57            const keys = Object.keys(context.options[1].exceptions);58            for (let i = 0; i < keys.length; i++) {59                exceptions[keys[i]] = context.options[1].exceptions[keys[i]];60            }61        }62        //--------------------------------------------------------------------------63        // Helpers64        //--------------------------------------------------------------------------65        /**66         * Modified text based on the style67         * @param {string} styleType Style type68         * @param {string} text Source code text69         * @returns {string} modified text70         * @private71         */72        function getReplacedText(styleType, text) {73            switch (styleType) {74                case "between":75                    return `,${text.replace(astUtils.LINEBREAK_MATCHER, "")}`;76                case "first":77                    return `${text},`;78                case "last":79                    return `,${text}`;80                default:81                    return "";82            }83        }84        /**85         * Determines the fixer function for a given style.86         * @param {string} styleType comma style87         * @param {ASTNode} previousItemToken The token to check.88         * @param {ASTNode} commaToken The token to check.89         * @param {ASTNode} currentItemToken The token to check.90         * @returns {Function} Fixer function91         * @private92         */93        function getFixerFunction(styleType, previousItemToken, commaToken, currentItemToken) {94            const text =95                sourceCode.text.slice(previousItemToken.range[1], commaToken.range[0]) +96                sourceCode.text.slice(commaToken.range[1], currentItemToken.range[0]);97            const range = [previousItemToken.range[1], currentItemToken.range[0]];98            return function(fixer) {99                return fixer.replaceTextRange(range, getReplacedText(styleType, text));100            };101        }102        /**103         * Validates the spacing around single items in lists.104         * @param {Token} previousItemToken The last token from the previous item.105         * @param {Token} commaToken The token representing the comma.106         * @param {Token} currentItemToken The first token of the current item.107         * @param {Token} reportItem The item to use when reporting an error.108         * @returns {void}109         * @private110         */111        function validateCommaItemSpacing(previousItemToken, commaToken, currentItemToken, reportItem) {112            // if single line113            if (astUtils.isTokenOnSameLine(commaToken, currentItemToken) &&114                    astUtils.isTokenOnSameLine(previousItemToken, commaToken)) {115                // do nothing.116            } else if (!astUtils.isTokenOnSameLine(commaToken, currentItemToken) &&117                    !astUtils.isTokenOnSameLine(previousItemToken, commaToken)) {118                const comment = sourceCode.getCommentsAfter(commaToken)[0];119                const styleType = comment && comment.type === "Block" && astUtils.isTokenOnSameLine(commaToken, comment)120                    ? style121                    : "between";122                // lone comma123                context.report({124                    node: reportItem,125                    loc: {126                        line: commaToken.loc.end.line,127                        column: commaToken.loc.start.column128                    },129                    messageId: "unexpectedLineBeforeAndAfterComma",130                    fix: getFixerFunction(styleType, previousItemToken, commaToken, currentItemToken)131                });132            } else if (style === "first" && !astUtils.isTokenOnSameLine(commaToken, currentItemToken)) {133                context.report({134                    node: reportItem,135                    messageId: "expectedCommaFirst",136                    fix: getFixerFunction(style, previousItemToken, commaToken, currentItemToken)137                });138            } else if (style === "last" && astUtils.isTokenOnSameLine(commaToken, currentItemToken)) {139                context.report({140                    node: reportItem,141                    loc: {142                        line: commaToken.loc.end.line,143                        column: commaToken.loc.end.column144                    },145                    messageId: "expectedCommaLast",146                    fix: getFixerFunction(style, previousItemToken, commaToken, currentItemToken)147                });148            }149        }150        /**151         * Checks the comma placement with regards to a declaration/property/element152         * @param {ASTNode} node The binary expression node to check153         * @param {string} property The property of the node containing child nodes.154         * @private155         * @returns {void}156         */157        function validateComma(node, property) {158            const items = node[property],159                arrayLiteral = (node.type === "ArrayExpression" || node.type === "ArrayPattern");160            if (items.length > 1 || arrayLiteral) {161                // seed as opening [162                let previousItemToken = sourceCode.getFirstToken(node);163                items.forEach(item => {164                    const commaToken = item ? sourceCode.getTokenBefore(item) : previousItemToken,165                        currentItemToken = item ? sourceCode.getFirstToken(item) : sourceCode.getTokenAfter(commaToken),166                        reportItem = item || currentItemToken;167                    /*168                     * This works by comparing three token locations:169                     * - previousItemToken is the last token of the previous item170                     * - commaToken is the location of the comma before the current item171                     * - currentItemToken is the first token of the current item172                     *173                     * These values get switched around if item is undefined.174                     * previousItemToken will refer to the last token not belonging175                     * to the current item, which could be a comma or an opening176                     * square bracket. currentItemToken could be a comma.177                     *178                     * All comparisons are done based on these tokens directly, so179                     * they are always valid regardless of an undefined item.180                     */181                    if (astUtils.isCommaToken(commaToken)) {182                        validateCommaItemSpacing(previousItemToken, commaToken,183                            currentItemToken, reportItem);184                    }185                    if (item) {186                        const tokenAfterItem = sourceCode.getTokenAfter(item, astUtils.isNotClosingParenToken);187                        previousItemToken = tokenAfterItem188                            ? sourceCode.getTokenBefore(tokenAfterItem)189                            : sourceCode.ast.tokens[sourceCode.ast.tokens.length - 1];190                    }191                });192                /*193                 * Special case for array literals that have empty last items, such194                 * as [ 1, 2, ]. These arrays only have two items show up in the195                 * AST, so we need to look at the token to verify that there's no196                 * dangling comma.197                 */198                if (arrayLiteral) {199                    const lastToken = sourceCode.getLastToken(node),200                        nextToLastToken = sourceCode.getTokenBefore(lastToken);201                    if (astUtils.isCommaToken(nextToLastToken)) {202                        validateCommaItemSpacing(203                            sourceCode.getTokenBefore(nextToLastToken),204                            nextToLastToken,205                            lastToken,206                            lastToken207                        );208                    }209                }210            }211        }212        //--------------------------------------------------------------------------213        // Public214        //--------------------------------------------------------------------------215        const nodes = {};216        if (!exceptions.VariableDeclaration) {217            nodes.VariableDeclaration = function(node) {218                validateComma(node, "declarations");219            };220        }221        if (!exceptions.ObjectExpression) {222            nodes.ObjectExpression = function(node) {223                validateComma(node, "properties");224            };225        }226        if (!exceptions.ObjectPattern) {227            nodes.ObjectPattern = function(node) {228                validateComma(node, "properties");229            };230        }231        if (!exceptions.ArrayExpression) {232            nodes.ArrayExpression = function(node) {233                validateComma(node, "elements");234            };235        }236        if (!exceptions.ArrayPattern) {237            nodes.ArrayPattern = function(node) {238                validateComma(node, "elements");239            };240        }241        if (!exceptions.FunctionDeclaration) {242            nodes.FunctionDeclaration = function(node) {243                validateComma(node, "params");244            };245        }246        if (!exceptions.FunctionExpression) {247            nodes.FunctionExpression = function(node) {248                validateComma(node, "params");249            };250        }251        if (!exceptions.ArrowFunctionExpression) {252            nodes.ArrowFunctionExpression = function(node) {253                validateComma(node, "params");254            };255        }256        if (!exceptions.CallExpression) {257            nodes.CallExpression = function(node) {258                validateComma(node, "arguments");259            };260        }261        if (!exceptions.ImportDeclaration) {262            nodes.ImportDeclaration = function(node) {263                validateComma(node, "specifiers");264            };265        }266        if (!exceptions.NewExpression) {267            nodes.NewExpression = function(node) {268                validateComma(node, "arguments");269            };270        }271        return nodes;272    }...

Using AI Code Generation

1var request = require('request');2var prompt = require('prompt');3var async = require('async');4var _ = require('underscore');5var fs = require('fs');6var cheerio = require('cheerio');7var http = require('http');8var url = require('url');9var querystring = require('querystring');10var request = require('request');11var prompt = require('prompt');12var async = require('async');13var _ = require('underscore');14var fs = require('fs');15var cheerio = require('cheerio');16var http = require('http');17var url = require('url');18var querystring = require('querystring');19var request = require('request');20var prompt = require('prompt');21var async = require('async');22var _ = require('underscore');23var fs = require('fs');24var cheerio = require('cheerio');25var http = require('http');26var url = require('url');27var querystring = require('querystring');28var request = require('request');29var prompt = require('prompt');30var async = require('async');31var _ = require('underscore');32var fs = require('fs');33var cheerio = require('cheerio');34var http = require('http');35var url = require('url');

Using AI Code Generation

1var bestbuy = require('bestbuy')('your-api-key-here');2var results = bestbuy.products('(search=ipod&categoryPath.id=abcat0502000)', {show: 'sku,name,salePrice', page: 2, pageSize: 5}).then(function(data) {3    console.log(data);4});5var bestbuy = require('bestbuy')('your-api-key-here');6var results = bestbuy.products('(search=ipod&categoryPath.id=abcat0502000)', {show: 'sku,name,salePrice', page: 2, pageSize: 5}).then(function(data) {7    console.log(data);8});9var bestbuy = require('bestbuy')('your-api-key-here');10var results = bestbuy.products('(search=ipod&categoryPath.id=abcat0502000)', {show: 'sku,name,salePrice', page: 2, pageSize: 5}).then(function(data) {11    console.log(data);12});13var bestbuy = require('bestbuy')('your-api-key-here');14var results = bestbuy.products('(search=ipod&categoryPath.id=abcat0502000)', {show: 'sku,name,salePrice', page: 2, pageSize: 5}).then(function(data) {15    console.log(data);16});17var bestbuy = require('bestbuy')('your-api-key-here');18var results = bestbuy.products('(search=ipod&categoryPath.id=abcat0502000)', {show: 'sku,name,salePrice', page: 2, pageSize: 5}).then(function(data) {19    console.log(data);20});21var bestbuy = require('bestbuy')('your-api-key-here');22var results = bestbuy.products('(search=ipod&categoryPath.id=abcat0502000)', {show: 'sku,name,salePrice', page: 2, pageSize: 5}).then(function(data) {23    console.log(data

Using AI Code Generation

1var request = require('request');2var fs = require('fs');3var api_key = fs.readFileSync ('./key.txt');4request(url, function (error, response, body) {5  if (!error && response.statusCode == 200) {6    var info = JSON.parse(body);7    console.log(info);8  }9})

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.