At the end of both loops, the program calls the output prettifiction function that optionally replaces ASCII control characters and spaces with Unicode glyphs and converts the output array chars to a string using the join() function. The second loop runs from 1 to length and is responsible for the length of each result. The first loop runs from 1 to count that is responsible for the number of ASCII strings in the output. Each of the three control statements contain two for loops. To convert the picked decimal value to an ASCII symbol, it calls the omCharCode(dec) function. The program converts the input range (or ranges, if multiple are specified) to the array decimals and picks a random dec value from it via the same randomArrEl(decimals) function. The final else statement is used to generate ASCII characters from a range of ASCII codes. Then it calls the function randomArrEl(customChars) to generate a random ASCII character. In this mode, the program splits the custom character pattern into symbols using the grapheme-splitter.js library and assigns the created array to the customChars variable. The second else if statement is used to generate a custom pattern. To select a random array element, it calls the randomArrEl(charset) function and puts the return value in the char variable. For example, all lowercase letters are stored in charsets array that looks like this. In this mode, the program calls a function that stores all the predefined patterns in a lookup table called charsets and returns an array with all characters in the charset. The first if statement is used to generate a predefined pattern. To distinguish between the generating modes, it uses three simple control statements: if (pattern), else if (customPattern), else, each responsible for one of the modes. It supports three ASCII generation modes – generating ASCII from a predefined pattern, generating ASCII from your own pattern, and generating ASCII from a code range. This random ASCII character generator works entirely in your browser and is written in JavaScript. You can also adjust the output separator that gets printed between the generated symbols and code positions.How Does This Random Ascii Generator Work? If you choose to print code points, you can configure their output format (for example, print them with the hex prefix "0x" or JavaScript prefix "\u"), change the case of code point hex digits (for example, print them as lowercase hex "0xffe6" or uppercase hex "0xFFE6"), and pad hex values to full two bytes (for example, code point value "0x41" will be padded to "0x0041"). To get your list of random Unicode glyphs, you need to specify the starting and ending code point values of the range and set the number of desired output values. The configuration options allow you to generate random Unicode characters (printed as glyphs), random code points (printed as numbers), or both values at the same time (printed as a glyph+number). The remaining values are unused and when generated they are represented by an empty rectangle. Currently, over 1 million Unicode characters exist, which correspond to code points from U+0000 to U+10FFFF (in hexadecimal), however, only 248,966 (22.35%) code points are used. These characters are represented by unique numeric values, usually written in the form "U+XXXX", which are called code positions (or code points). The Unicode space consists of all possible letters, symbols, marks, numbers, punctuations, and separators that people have thought of. This utility selects and prints random Unicode symbols and their code position values from the given interval.
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