Word array to string

What you are trying to achieve is already implemented in CryptoJS. From the documentation:

You can convert a WordArray object to other formats by explicitly calling the toString method and passing an encoder.

var hash = CryptoJS.SHA256("Message");
alert(hash.toString(CryptoJS.enc.Base64));
alert(hash.toString(CryptoJS.enc.Hex));

Honestly I have no idea why you want to implement that yourself… But if you absolutely need to do it «manually» in the 2 steps you mentioned, you could try something like this:

function wordToByteArray(wordArray) {
    var byteArray = [], word, i, j;
    for (i = 0; i < wordArray.length; ++i) {
        word = wordArray[i];
        for (j = 3; j >= 0; --j) {
            byteArray.push((word >> 8 * j) & 0xFF);
        }
    }
    return byteArray;
}

function byteArrayToString(byteArray) {
    var str = "", i;
    for (i = 0; i < byteArray.length; ++i) {
        str += escape(String.fromCharCode(byteArray[i]));
    }
    return str;
}

var hash = CryptoJS.SHA256("Message");
var byteArray = wordToByteArray(hash.words);
alert(byteArrayToString(byteArray));

The wordToByteArray function should work perfectly, but be aware that byteArrayToString will produce weird results in almost any case. I don’t know much about encodings, but ASCII only uses 7 bits so you won’t get ASCII chars when trying to encode an entire byte. So I added the escape function to at least be able to display all those strange chars you might get.

I’d recommend you use the functions CryptoJS has already implemented or just use the byte array (without converting it to string) for your analysis.

Answer by Eva Zavala

What you are trying to achieve is already implemented in CryptoJS. From the documentation:,You can convert a WordArray object to other formats by explicitly calling the toString method and passing an encoder.,I’d recommend you use the functions CryptoJS has already implemented or just use the byte array (without converting it to string) for your analysis.,

1

First question: why do you need this? There’s almost certainly a better way to achieve whatever you’re trying to accomplish.

– Blazemonger

Aug 9 ’12 at 18:06

You can convert a WordArray object to other formats by explicitly calling the toString method and passing an encoder.

var hash = CryptoJS.SHA256("Message");
alert(hash.toString(CryptoJS.enc.Base64));
alert(hash.toString(CryptoJS.enc.Hex));

Honestly I have no idea why you want to implement that yourself… But if you absolutely need to do it «manually» in the 2 steps you mentioned, you could try something like this:

function wordToByteArray(wordArray) {
    var byteArray = [], word, i, j;
    for (i = 0; i < wordArray.length; ++i) {
        word = wordArray[i];
        for (j = 3; j >= 0; --j) {
            byteArray.push((word >> 8 * j) & 0xFF);
        }
    }
    return byteArray;
}

function byteArrayToString(byteArray) {
    var str = "", i;
    for (i = 0; i < byteArray.length; ++i) {
        str += escape(String.fromCharCode(byteArray[i]));
    }
    return str;
}

var hash = CryptoJS.SHA256("Message");
var byteArray = wordToByteArray(hash.words);
alert(byteArrayToString(byteArray));

---

Answer by Thalia Cantu

Base64.stringify wants a wordArray as the input, not a string. Do that conversion first.,How to get a WordArray from Buffer, this buffer may be created by s.readFileSync(chunkLocalPath),@gamelife 1314 CryptoJS.enc.Hex.parse(),It’s not work and throw error
crypto-js.js:789 Uncaught TypeError: wordArray.clamp is not a function

$signStr = base64_encode(hash_hmac('SHA1', 'msg', $secret_key, true).'msg');

---

Answer by Landon Payne

var encrypt=function (type,val,salt) {
  if(!val)
  {
    return ""
  }
  var arr=["Base64","MD5","SHA-1","SHA-256","SHA-512","SHA-3","RIPEMD-160"];
  var arrFunc=[BASE64.encoder,CryptoJS.MD5,CryptoJS.SHA1,CryptoJS.SHA256,CryptoJS.SHA512,CryptoJS.SHA3,CryptoJS.RIPEMD160]
  var arrSalt=["AES","TripleDES","DES","Rabbit","RC4","RC4Drop"];
  var arrSaltFunc=[CryptoJS.AES.encrypt,CryptoJS.TripleDES.encrypt,CryptoJS.DES.encrypt,CryptoJS.Rabbit.encrypt,CryptoJS.RC4.encrypt,CryptoJS.RC4Drop.encrypt];
  var index=arr.indexOf(type);
  if(index>-1)
  {
    return arrFunc[index](val).toString();
  }
  index=arrSalt.indexOf(type);
  if(index>-1)
  {
    return arrSaltFunc[index](val,salt).toString();
  }
  return val;
}

---

Answer by Gatlin Alexander

Strings containing Emojis,Stack Overflow: How do you get a string to a character array in JavaScript? ,
Convert Array-like to True Array in JavaScript
,
String Trim in JavaScript

const string = 'word';

// Option 1
string.split('');

// Option 2
[...string];

// Option 3
Array.from(string);

// Option 4
Object.assign([], string);

// Result:
// ['w', 'o', 'r', 'd']

---

Answer by Celia Compton

Write a JavaScript function to split a string and convert it into an array of words.,See the Pen JavaScript Split a string and convert it into an array of words — string-ex-3 by w3resource (@w3resource) on CodePen.,Previous: Write a JavaScript function to check whether a string is blank or not.
Next: Write a JavaScript function to extract a specified number of characters from a string.,Because of certain maintenance issues of our servers and financial constraints, we are closing our commenting system for the time being. We may resume that in the near future.

HTML Code:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Split a string and convert it into an array of words.</title>
</head>
<body>
</body>
</html>

JavaScript Code:

string_to_array = function (str) {
     return str.trim().split(" ");
};
console.log(string_to_array("Robin Singh"));

Sample Output:

["Robin","Singh"]

---

Answer by Alice Mendez

Most frequent word in an array of strings,Time complexity : O(n),A Time Complexity Question,Given an array of words find the most occurring word in itExamples:  

Given an array of words find the most occurring word in it
Examples: 
 

Input : arr[] = {"geeks", "for", "geeks", "a", 
                "portal", "to", "learn", "can",
                "be", "computer", "science", 
                 "zoom", "yup", "fire", "in", 
                 "be", "data", "geeks"}
Output : Geeks 
"geeks" is the most frequent word as it 
occurs 3 times

Output

The word that occurs most is : geeks
No of times: 3

Output

geeks

Output

3
geeks

Output

geeks

---

Answer by Guadalupe Howard

var input = 'john smith~123 Street~Apt 4~New York~NY~12345';

var fields = input.split('~');

var name = fields[0];
var street = fields[1];

---

Answer by Alden Briggs

str_word_count() — Return information about words used in a string,count_chars() — Return information about characters used in a string,str_split — Convert a string to an array,explode() — Split a string by a string

Array
(
    [0] => H
    [1] => e
    [2] => l
    [3] => l
    [4] => o
    [5] =>
    [6] => F
    [7] => r
    [8] => i
    [9] => e
    [10] => n
    [11] => d
)

Array
(
    [0] => Hel
    [1] => lo
    [2] => Fri
    [3] => end
)

---

В этом посте мы обсудим, как преобразовать массив символов в строку в Java. Должна быть выделена новая строка, представляющая последовательность символов, содержащихся в массиве char. Поскольку строка неизменяема в Java, последующая модификация массива символов не влияет на выделенную строку.

1. Использование конструктора строк

Самое простое решение — передать массив символов в конструктор String. Конструктор String внутренне использует Arrays.copyOf() чтобы скопировать содержимое массива символов.

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результат:

Techie Delight

2. Использование String.valueOf() или же String.copyValueOf() метод

Мы можем инкапсулировать вызов конструктора строки, используя String.valueOf() или же String.copyValueOf() который внутри делает то же самое.

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3. Использование StringBuilder

Другой вероятный способ преобразования массива символов в строку — использование StringBuilder в Java. Идея состоит в том, чтобы перебирать символы и добавлять каждый символ в StringBuilder. Наконец, позвоните в toString() метод на StringBuilder при повторении всех символов.

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результат:

Techie Delight

4. Использование toString() метод

(Не рекомендуется)

Здесь идея состоит в том, чтобы получить строковое представление указанного массива. Строковое представление состоит из списка элементов массива, заключенного в квадратные скобки ("[]"), а все соседние элементы разделяются запятой, за которой следует пробел ", ".

Мы можем легко избавиться от квадратных скобок, вызвав метод substring() метод и запятая + пробел с помощью replaceAll() метод.

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Это все о преобразовании массива символов в строку Java.

Strings are defined as an array of characters. The difference between a character array and a string is the string is terminated with a special character “”. A character array can be converted to a string and vice versa. In the previous article, we have already discussed how to convert a string to a character array. In this article, we will discuss how to convert a character array to a string. 

Illustrations:

Input  1 : char s[] = { ‘g’, ‘e’, ‘e’, ‘k’, ‘s’, ‘f’, ‘o’, ‘r’, ‘g’, ‘e’, ‘e’, ‘k’, ‘s’ } 

Output 1 : “geeksforgeeks” 

Input  2 : char s[] = { ‘c’, ‘o’, ‘d’, ‘i’, ‘n’, ‘g’ } 

Output 2 : “coding”

Methods:

1. Using copyOf() method of Arrays class
2. Using StringBuilder class
3. Using valueOf() method of String class
4. Using copyValueOf() method of String class
5. Using Collectors in Streams

Now let us discuss each of the methods in detail alongside implementing them with help of a clean java program.

Method 1: Using copyOf() method of Array class

The given character can be passed into the String constructor. By default, the character array contents are copied using the Arrays.copyOf() method present in the Arrays class. 

Example:

Output: 
 

geeksforgeeks

Method 2: Using StringBuilder class

Another way to convert a character array to a string is to use the StringBuilder class. Since a StringBuilder is a mutable class, therefore, the idea is to iterate through the character array and append each character at the end of the string. Finally, the string contains the string form of the characters.

Example:

Method 3: Using valueOf() method of String class

Another way to convert a character array to a string is to use the valueOf() method present in the String class. This method inherently converts the character array to a format where the entire value of the characters present in the array is displayed. This method generally converts int, float, double, char, boolean, and even object to a string. Here we will achieve the goal by converting our character array to string.

Example:

Method 4: Using copyValueOf() method of String class

The contents from the character array are copied and subsequently modified without affecting the string to be returned, hence this method also enables us to convert the character array to a string which can be perceived even better from the example provided below as follows.

Example:

Method 5: Using Collectors in Streams

With the introduction of streams in java8, we straight away use Collectors in streams to modify our character input array elements and later uses joining() method and return a single string and print it.

Example: