Задания выполнены!

task/01-strings-tasks.js

@@ -22,7 +22,7 @@
  *   '',  'bb'  => 'bb'
  */
 function concatenateStrings(value1, value2) {
-    throw new Error('Not implemented');
+    return value1+value2;
 }
 
 
@@ -38,7 +38,7 @@ function concatenateStrings(value1, value2) {
  *   ''      => 0
  */
 function getStringLength(value) {
-    throw new Error('Not implemented');
+    return value.length;
 }
 
 /**
@@ -55,7 +55,7 @@ function getStringLength(value) {
  *   'Chuck','Norris'  => 'Hello, Chuck Norris!'
  */
 function getStringFromTemplate(firstName, lastName) {
-    throw new Error('Not implemented');
+	return "Hello, "+firstName+" "+lastName+"!";
 }
 
 /**
@@ -69,7 +69,7 @@ function getStringFromTemplate(firstName, lastName) {
  *   'Hello, Chuck Norris!' => 'Chuck Norris'
  */
 function extractNameFromTemplate(value) {
-    throw new Error('Not implemented');
+    return value.slice(7,value.length-1);
 }
 
 
@@ -84,7 +84,7 @@ function extractNameFromTemplate(value) {
  *   'cat'       => 'c'
  */
 function getFirstChar(value) {
-    throw new Error('Not implemented');
+    return value[0];
 }
 
 /**
@@ -99,7 +99,7 @@ function getFirstChar(value) {
  *   '\tHello, World! ' => 'Hello, World!'
  */
 function removeLeadingAndTrailingWhitespaces(value) {
-    throw new Error('Not implemented');
+    return value.trim();
 }
 
 /**
@@ -114,7 +114,9 @@ function removeLeadingAndTrailingWhitespaces(value) {
  *   'cat', 3 => 'catcatcat'
  */
 function repeatString(value, count) {
-    throw new Error('Not implemented');
+    let result="";
+	for (let i=1;i<=count;i++) result=result+value;
+	return result;
 }
 
 /**
@@ -130,7 +132,9 @@ function repeatString(value, count) {
  *   'ABABAB','BA' => 'ABAB'
  */
 function removeFirstOccurrences(str, value) {
-    throw new Error('Not implemented');
+    let pos=str.indexOf(value);
+	if (pos>=0) str=str.slice(0,pos)+str.slice(pos+value.length,str.length);
+	return str;
 }
 
 /**
@@ -145,7 +149,7 @@ function removeFirstOccurrences(str, value) {
  *   '<a>' => 'a'
  */
 function unbracketTag(str) {
-    throw new Error('Not implemented');
+    return str.slice(1,str.length-1);
 }
 
 
@@ -160,7 +164,7 @@ function unbracketTag(str) {
  *  'abcdefghijklmnopqrstuvwxyz' => 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
  */
 function convertToUpperCase(str) {
-    throw new Error('Not implemented');
+    return str.toUpperCase();
 }
 
 /**
@@ -174,7 +178,7 @@ function convertToUpperCase(str) {
  *   'info@gmail.com' => ['info@gmail.com']
  */
 function extractEmails(str) {
-    throw new Error('Not implemented');
+    return str.split(';');
 }
 
 /**
@@ -201,7 +205,25 @@ function extractEmails(str) {
  *
  */
 function getRectangleString(width, height) {
-    throw new Error('Not implemented');
+    let mas="";
+	for (let i=1;i<=height;i++) {
+		if (i==1) {
+			mas+="┌";
+			for (let i2=2;i2<width;i2++) mas+="─";
+			mas+="┐\n";
+		}
+		if (i>1&&i<height) {
+			mas+="│";
+			for (let i2=2;i2<width;i2++) mas+=" ";
+			mas+="│\n";
+		}
+		if (i==height) {
+			mas+="└";
+			for (let i2=2;i2<width;i2++) mas+="─";
+			mas+="┘\n";
+		}
+	}
+	return mas;
 }
 
 
@@ -221,7 +243,14 @@ function getRectangleString(width, height) {
  *
  */
 function encodeToRot13(str) {
-    throw new Error('Not implemented');
+    const input='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
+    const output='NOPQRSTUVWXYZABCDEFGHIJKLMnopqrstuvwxyzabcdefghijklm';
+	let pos=-1;
+	for (let i=0;i<str.length;i++) {
+		pos=input.indexOf(str[i]);
+		if (pos>-1) str=str.slice(0,i)+output[pos]+str.slice(i+1,str.length);
+	}
+	return str;
 }
 
 /**
@@ -238,7 +267,7 @@ function encodeToRot13(str) {
  *   isString(new String('test')) => true
  */
 function isString(value) {
-    throw new Error('Not implemented');
+    return typeof value==="string"||value instanceof String;
 }
 
 
@@ -267,7 +296,11 @@ function isString(value) {
  *   'K♠' => 51
  */
 function getCardId(value) {
-    throw new Error('Not implemented');
+    const nums=['A','2','3','4','5','6','7','8','9','10','J','Q','K'];
+	const mass=['♣','♦','♥','♠'];
+	let num=value.slice(0,-1);
+	let mas=value.slice(-1);
+	return mass.indexOf(mas)*13+nums.indexOf(num);
 }