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In computers, case sensitivity defines whether uppercase and lowercase letters are treated as distinct (case-sensitive) or equivalent (case-insensitive). For instance, when users interested in learning about dogs search an e-book, "dog" and "Dog" are of the same significance to them. Thus, they request a case-insensitive search.
JavaScript is case sensitive, so the uppercase characters "A" through "Z" are different from the lowercase characters "a" through "z". Starting with JavaScript 1.5, ISO 8859-1 or Unicode letters (or \uXXXX Unicode escape sequences) can be used in identifiers. [ 5 ]
This can be accomplished as a special case of #Find, with a string of one character; but it may be simpler or more efficient in many languages to locate just one character. Also, in many languages, characters and strings are different types, so it is convenient to have such a function.
A change in case from lowercase to uppercase is a word boundary in an alphabetic word. The word boundary between such numeric portions and an alphabetic portions may include grey-space or not, but a phrase search turns off portioning , because it is an "exact phrase search", the words in the phrase matching only alphanumeric words delimited by ...
Some naming conventions limit whether letters may appear in uppercase or lowercase. Other conventions do not restrict letter case, but attach a well-defined interpretation based on letter case. Some naming conventions specify whether alphabetic, numeric, or alphanumeric characters may be used, and if so, in what sequence.
To make comparison case insensitive for "different from ... ignorecase= if set to any value will ignore upper/lower case differences between value in template ...
Rebol was named by Douglas Crockford as one of the inspirations of JavaScript Object Notation. [5] Rebol inspired the open-source Orca project, which is an interpreted Rebol-like language. [14] Boron is an interpreted, homoiconic language inspired by and similar to Rebol, which is meant for embedding domain specific languages. It is implemented ...
The following (case-insensitive) values are valid for data-sort-type: text; number; currency; url for website addresses; IPAddress for numeric internet protocol addresses; date for language specific standard date format; isoDate for dates in ISO 8601 format (i.e. YYYY-MM-DD) usLongDate for dates in the US format of month day, year. Must have ...