The split of JavaScript ()

JavaScript Split () method

JavaScript String Object

Definition and usage

The split () method is used to split a string into an array of strings.

Grammar

Stringobject.split (separator,howmany)

Parameters	Description
Separator	Necessary. A string or regular expression that splits stringobject from where specified by the parameter.
Howmany	Optional. This parameter specifies the maximum length of the returned array. If this parameter is set, the returned substring will not be more than the array specified by this parameter. If this argument is not set, the entire string is split, regardless of its length.

return value

An array of strings. The array is created by splitting the string stringobject into substrings at the boundary specified by separator . The string in the returned array does not include the separator itself.

However, if separator is a regular expression that contains a subexpression, the returned array includes the strings that match those sub-expressions (but not the text that matches the entire regular expression).

Hints and Notes

Note: If you use an empty string ("") as a separator, each character in the Stringobject will be split.

Note: The action performed by String.Split () is the opposite of what Array.join does.

Example 1

In this case, we'll split the string in different ways:

<script type= "Text/javascript" >var str= "How is you doing today?" document.write (Str.split ("") + "<br/>") document.write (Str.split ("") + "<br/>") document.write (str.split ("", 3)) </script>

Output:

How,are,you,doing,today? H,o,w,, A,r,e,, Y,o,u,, D,o,i,n,g,, T,o,d,a,y,? How,are,you

Example 2

In this case, we'll split the strings with more complex structures:

"2:3:4:5". Split (":")//will return ["2", "3", "4", "5"] "|a|b|c". Split ("|") will return ["", "a", "B", "C"]

Example 3

Use the following code to divide the sentence into words:

var words = Sentence.split (")

or use regular expressions as separator:

var words = Sentence.split (/\s+/)

Example 4

If you want to divide the word into letters or divide the string into characters, you can use the following code:

"Hello". Split ("")//Can return ["H", "E", "L", "L", "O"]

To return only a subset of characters, use the Howmany parameter:

"Hello". Split ("", 3)//Can return ["H", "E", "L"]

The split of JavaScript ()