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The slice method in javascript extracts a portion of a string and returns the extracted portion as a new string using syntax such as "stringObject.slice(start,end)."

Operating environment: Windows 7 system, javascript version 1.8.5, DELL G3 computer

How to use slice method in javascript?

The slice() method extracts a portion of a string and returns the extracted portion as a new string.

syntax

stringObject.slice(start,end)

parameters

start The starting subscript of the fragment to extract. If negative, this parameter specifies the position from the end of the string. That is,-1 refers to the last character of the string,-2 refers to the penultimate character, and so on.

end The subscript immediately following the end of the fragment to extract. If this parameter is not specified, the substring to extract consists of strings starting to the end of the original string. If the argument is negative, it specifies the position from the end of the string.

return value

A new string. Includes all characters of the string stringObject from start (inclusive) to end (exclusive).

description

String object methods slice(), substring(), and substr()(deprecated) all return specified parts of a string. Slice() is more flexible than substring() because it allows negative numbers as arguments. Slice() differs from substr() in that it specifies a substring in terms of two character positions, whereas substr() specifies a substring in terms of character position and length.

Also note that String.slice() is similar to Array.slice().

examples

Example 1

In this example, we will extract all characters starting at position 6:

var str="Hello happy world! "[xss_clean](str.slice(6))

Output:

happy world!

Example 2

In this example, we will extract all characters from position 6 to position 11:

var str="Hello happy world! "[xss_clean](str.slice(6,11))

Output:

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