JavaScript – Working with Data Types
JavaScript has 8 Datatypes: String, Number, Bigint, Boolean, Undefined, Null, Symbol, and Object.
JavaScript – String charAt() Method
The String charAt() method returns the character at a specified position in a string.
JavaScript – String charCodeAt() Method
The String charAt() method returns the Unicode (UTF-16) of the character at a specified position in a string.
JavaScript – String codePointAt() Method
The String codePointAt() method returns the Unicode of the character at a specified position in a string.
JavaScript – String concat() Method
The String concat() method joins two or more strings, returning a new string, without changing the existing strings.
JavaScript – String constructor Property
The String constructor property returns the function that created the String prototype.
JavaScript – String endsWith() Method
The String endsWith() method returns true if a string ends with a specified string, if not, it returns false. The method is case sensitive.
JavaScript – String.fromCharCode() Method
The String.fromCharCode() method converts Unicode values to characters.
JavaScript – String includes() Method
The String includes() method returns “true” if a string contains a specified string, if not, it returns “false”. The method is case sensitive.
JavaScript – String indexOf() Method
The String indexOf() method returns the position of the first occurrence of a value in a string, and returns -1 if the value is not found.
JavaScript – String lastIndexOf() Method
The String lastIndexOf() method returns the position of the last occurrence, searching from the end to the beginning, of a specified value in a string.
JavaScript – String length Property
The String length property returns the length of a string. An empty string will return 0.
JavaScript – String localeCompare() Method
The String localeCompare() method compares two strings in the current locale, and returns their sort order -1, 1, or 0 (before, after, equal).
JavaScript – String match() Method
The String match() method matches a string against a regular expression, returning an array with the matches or null if no match is found.
JavaScript – String prototype Property
The String prototype property allows the addition of new properties and methods to strings.
JavaScript – String repeat() Method
The String repeat() method returns a new string with a number of copies of an existing string, without changing the original string.
JavaScript – String replace() Method
The String replace() method searches a string for a value or a regular expression, and returns a new string with the values replaced.
JavaScript – String search() Method
The String search() method matches a string against a regular expression, returning the position of the first match or -1 if no match is found.
JavaScript – String slice() Method
The String slice() method extracts a part of a string, returning the extracted part as a new string, without changing the original string.
JavaScript – String split() Method
The String split() method splits a string into an array of substrings, and returns a new array, without changing the original string.