ES6 Tutorial
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ES6 - Strings
ES6 - Strings
The String object lets you work with a series of characters; it wraps JavaScript’s string primitive data type with a number of helper methods.
As JavaScript automatically converts between string primitives and String objects, you can call any of the helper methods of the String object on a string primitive.
Use the following syntax to create a String object.
var val = new String(string);
The string parameter is a series of characters that has been properly encoded. String.
String Properties
Following is a pst of the properties of String object and its description.
| Sr.No | Property & Description |
|---|---|
| 1 |
Returns a reference to the String function that created the object . |
| 2 |
Returns the length of the string. |
| 3 |
The prototype property allows you to add properties and methods to an object . |
String Methods
Here is a pst of the methods available in String object along with their description.
| Sr.No | Method & Description |
|---|---|
| 1 |
Returns the character at the specified index. |
| 2 |
Returns a number indicating the Unicode value of the character at the given index. |
| 3 |
Combines the text of two strings and returns a new string. |
| 4 |
Returns the index within the calpng String object of the first occurrence of the specified value, or -1 if not found. |
| 5 |
Returns the index within the calpng String object of the last occurrence of the specified value, or -1 if not found. |
| 6 |
Returns a number indicating whether a reference string comes before or after or is the same as the given string in a sorted order. |
| 7 | match()
Used to match a regular expression against a string. |
| 8 |
Used to find a match between a regular expression and a string, and to replace the matched substring with a new substring. |
| 9 |
Executes the search for a match between a regular expression and a specified string. |
| 10 |
Extracts a section of a string and returns a new string. |
| 11 |
Sppts a String object into an array of strings by separating the string into substrings. |
| 12 |
Returns the characters in a string beginning at the specified location through the specified number of characters. |
| 13 |
Returns the characters in a string between two indexes into the string. |
| 14 |
The characters within a string are converted to lower case while respecting the current locale. |
| 15 | toLocaleupperCase()
The characters within a string are converted to uppercase while respecting the current locale. |
| 16 |
Returns the calpng string value converted to lowercase. |
| 17 |
Returns a string representing the specified object. |
| 18 |
Returns the calpng string value converted to uppercase. |
| 19 |
Returns the primitive value of the specified object. |