Special characters in JavaScript are symbols that have specific meanings within the language syntax. These include characters like the newline (\n), tab (\t), backslash (\\), and quotes (" and '). Without proper escaping, these characters can alter the flow of the code, leading to errors...
The abstract equality operator converts both sides to numbers to compare them, and both sides become the number0for different reasons. Arrays are truthy, so on the right, the opposite of a truthy value isfalse, which is then coerced to0. On the left, however, an empty array is coerced ...
Accomodating multiple languages and symbols typically leads to multiple character sets. That's why we have so many of them. However, this is merely a legacy of the past when there was no single universal character set to turn to. Then, fortunately, came in Unicode. Unicode is a universal ...
Having the two sets of quote symbols is handy when you need to embed one string within another. The followingdocument.write()statement that would execute while a page loads into the browser has one outer string (the entire string being written by the method) and nested sets of quotes that ...
The key of an Object can only be a string or Symbols, but the key of a Map can be any value, including functions, objects, and basic types. Key sequence The key values in the map are ordered, but the keys added to the object are not. Therefore, when iterating over it, the Map ...
It allows all punctuation symbols to be backslash-escaped, not just the symbols with special meanings in Markdown. We found that it was just too hard to remember which symbols could be escaped. It introduces an alternative syntax for hard line breaks, a backslash at the end of the line, ...
Formal languagesare languages that are designed by people for specific applications. For example, the notation that mathematicians use is a formal language that is particularly good at denoting relationships among numbers and symbols. Chemists use a formal language to represent the chemical structure of...
fact that up until now there are actually numerous relevant substitutes for all of them presenting a much improved number in shapes and looks and the exact same simplicity of use. In such wise why narrow down your creative imagination to simply just 250 symbols if you can surely have ...
The Unicode characters add special characters like emoji, symbols, etc. in the text. For example, the below Unicode character will display the left arrow. ← The Below Unicode character will display the RS (Rupees sign) symbol. 8360
6.1.5.1 Well-Known SymbolsTricky arrow functionsConsider the example below:let f = () => 10; f(); // -> 10Okay, fine, but what about this:let f = () => {}; f(); // -> undefined💡 Explanation:You might expect {} instead of undefined. This is because the curly braces are...