Fix code style

Author: tshemsedinov

JavaScript/0-contract.js

@@ -9,8 +9,11 @@ const promise = new Promise((resolve, reject) => {
 
 console.dir(promise); // Promise { <pending> }
 
-promise.then((value) => {
-  console.log({ value });
-}, (error) => {
-  console.error(error);
-});
+promise.then(
+  (value) => {
+    console.log({ value });
+  },
+  (error) => {
+    console.error(error);
+  },
+);

JavaScript/2-promise.js

@@ -45,7 +45,8 @@ const readFile = (filename, encoding) =>
     fs.readFile(filename, encoding, (err, data) => {
       if (err) reject(err);
       else resolve(data.toString());
-    }));
+    }),
+  );
 
 readFile('file1.txt', 'utf8')
   .then((data) => {

JavaScript/3-promisify.js

@@ -1,12 +1,15 @@
 'use strict';
 
-const promisify = (fn) => (...args) => new Promise((resolve, reject) => {
-  args.push((err, result) => {
-    if (err) reject(err);
-    else resolve(result);
-  });
-  fn(...args);
-});
+const promisify =
+  (fn) =>
+  (...args) =>
+    new Promise((resolve, reject) => {
+      args.push((err, result) => {
+        if (err) reject(err);
+        else resolve(result);
+      });
+      fn(...args);
+    });
 
 const fs = require('node:fs');
 

JavaScript/4-catch.js

@@ -3,13 +3,16 @@
 const { readFile } = require('node:fs/promises');
 
 readFile('file1.txt', 'utf8')
-  .then((data) => {
-    console.dir({ file1: data });
-    return readFile('file2.txt', 'utf8');
-  }, (reason) => {
-    console.log('1: Cannot read file1.txt');
-    console.log(reason);
-  })
+  .then(
+    (data) => {
+      console.dir({ file1: data });
+      return readFile('file2.txt', 'utf8');
+    },
+    (reason) => {
+      console.log('1: Cannot read file1.txt');
+      console.log(reason);
+    },
+  )
   .catch((reason) => {
     console.log('2: Cannot read file1.txt');
     console.log(reason);

JavaScript/6-fetch.js

@@ -2,18 +2,19 @@
 
 const http = require('node:http');
 
-const fetch = (url) => new Promise((resolve, reject) => {
-  http.get(url, async (res) => {
-    const code = res.statusCode;
-    if (code !== 200) {
-      const err = new Error(`HTTP status code ${code}`);
-      return void reject(err);
-    }
-    const chunks = [];
-    for await (const chunk of res) chunks.push(chunk);
-    const data = Buffer.concat(chunks).toString();
-    resolve(JSON.parse(data));
+const fetch = (url) =>
+  new Promise((resolve, reject) => {
+    http.get(url, async (res) => {
+      const code = res.statusCode;
+      if (code !== 200) {
+        const err = new Error(`HTTP status code ${code}`);
+        return void reject(err);
+      }
+      const chunks = [];
+      for await (const chunk of res) chunks.push(chunk);
+      const data = Buffer.concat(chunks).toString();
+      resolve(JSON.parse(data));
+    });
   });
-});
 
 module.exports = fetch;

JavaScript/8-all.js

@@ -9,7 +9,7 @@ const promises = [
 ];
 
 Promise.allSettled(promises)
-//Promise.all(promises)
+  //Promise.all(promises)
   .then((values) => {
     console.log(values);
   })

JavaScript/Tasks/4-iterate.js

@@ -11,7 +11,7 @@ const iterate = (items) => {
         callback(items[index++]);
       }
       return chain;
-    }
+    },
   };
   return chain;
 };
@@ -23,10 +23,13 @@ const electronics = [
 ];
 
 // Use await syntax to get items
-iterate(electronics).next((item) => {
-  console.log(item);
-}).next((item) => {
-  console.log(item);
-}).next((item) => {
-  console.log(item);
-});
+iterate(electronics)
+  .next((item) => {
+    console.log(item);
+  })
+  .next((item) => {
+    console.log(item);
+  })
+  .next((item) => {
+    console.log(item);
+  });

JavaScript/Tasks/5-reject.js

@@ -8,12 +8,13 @@
 const iterate = (items) => {
   let index = 0;
   return {
-    next: () => new Promise((fulfill) => {
-      if (index < items.length) {
-        return fulfill(items[index++]);
-      }
-      throw new Error('No more items to iterate');
-    })
+    next: () =>
+      new Promise((fulfill) => {
+        if (index < items.length) {
+          return fulfill(items[index++]);
+        }
+        throw new Error('No more items to iterate');
+      }),
   };
 };
 

JavaScript/c-expirable.js

@@ -5,15 +5,18 @@ const PROMISE_TIMEOUT = 1000;
 class Expirable {
   constructor(executor) {
     const promise = new Promise((resolve, reject) => {
-      executor((val) => {
-        if (this.expired) return;
-        clearTimeout(this.timer);
-        resolve(val);
-      }, (err) => {
-        if (this.expired) return;
-        clearTimeout(this.timer);
-        reject(err);
-      });
+      executor(
+        (val) => {
+          if (this.expired) return;
+          clearTimeout(this.timer);
+          resolve(val);
+        },
+        (err) => {
+          if (this.expired) return;
+          clearTimeout(this.timer);
+          reject(err);
+        },
+      );
       this.timer = setTimeout(() => {
         this.expired = true;
         reject(new Error('Expired'));
@@ -32,38 +35,46 @@ new Expirable((resolve) => {
   setTimeout(() => {
     resolve('Resolved before timeout');
   }, 100);
-}).then((data) => {
-  console.dir({ data });
-}).catch((error) => {
-  console.dir({ error: error.message });
-});
+})
+  .then((data) => {
+    console.dir({ data });
+  })
+  .catch((error) => {
+    console.dir({ error: error.message });
+  });
 
 new Expirable((resolve, reject) => {
   setTimeout(() => {
     reject(new Error('Something went wrong'));
   }, 100);
-}).then((data) => {
-  console.dir({ data });
-}).catch((error) => {
-  console.dir({ error: error.message });
-});
+})
+  .then((data) => {
+    console.dir({ data });
+  })
+  .catch((error) => {
+    console.dir({ error: error.message });
+  });
 
 new Expirable((resolve) => {
   setTimeout(() => {
     resolve('Never resolved before timeout');
   }, 2000);
-}).then((data) => {
-  console.dir({ data });
-}).catch((error) => {
-  console.dir({ error: error.message });
-});
+})
+  .then((data) => {
+    console.dir({ data });
+  })
+  .catch((error) => {
+    console.dir({ error: error.message });
+  });
 
 new Expirable((resolve, reject) => {
   setTimeout(() => {
     reject(new Error('Never rejected before timeout'));
   }, 2000);
-}).then((data) => {
-  console.dir({ data });
-}).catch((error) => {
-  console.dir({ error: error.message });
-});
+})
+  .then((data) => {
+    console.dir({ data });
+  })
+  .catch((error) => {
+    console.dir({ error: error.message });
+  });

JavaScript/server.js

@@ -22,7 +22,7 @@ const routes = {
       name: 'Kyiv',
       country: 'Ukraine',
     });
-  }
+  },
 };
 
 const server = http.createServer((req, res) => {