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{"@context":"https://schema.org","@type":"Code","url":"https://leetcodejavascript.com/solutions/encode-and-decode-strings","name":"#271 - Encode and Decode Strings - LeetCode JavaScript Solutions","description":"Design an algorithm to encode a list of strings to a string. The encoded string is then sent over the network and is decoded back to the ori...","programmingLanguage":"JavaScript","codeRepository":"https://github.com/JoshCrozier/leetcode-javascript","codeSampleType":"JavaScript","text":"/**\n * Encodes a list of strings to a single string.\n *\n * @param {string[]} strs\n * @return {string}\n */\nvar encode = function(strs) {\n  return strs.map(str => `${str.length}:${str}`).join('');\n};\n\n/**\n * Decodes a single string to a list of strings.\n *\n * @param {string} s\n * @return {string[]}\n */\nvar decode = function(s) {\n  const result = [];\n  let i = 0;\n\n  while (i < s.length) {\n    const colon = s.indexOf(':', i);\n    const len = parseInt(s.slice(i, colon));\n    result.push(s.slice(colon + 1, colon + 1 + len));\n    i = colon + 1 + len;\n  }\n\n  return result;\n};","keywords":"LeetCode 271, #271 - Encode and Decode Strings, Medium, JavaScript solution","learningResourceType":"Code","isAccessibleForFree":true,"educationalLevel":"intermediate","interactivityType":"mixed"}