compare

Summary

Compares the String object to another String object.

Usage

public final Comparison compare(String object)

Returns

A System.Comparison enumeration result representing whether the specified String comparison object is less than, equal to, or greater than the current String object.

Parameters

object

The String object to compare to.

Description

Compares the String object to another String object. Returns one of the following System.Comparison enumeration values:

  • System.Comparison.LESS_THAN
  • System.Comparison.EQUAL
  • System.Comparison.GREATER_THAN

Examples

Basic Usage
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import System;
 
string s = "abc";
Comparison result = s.compare("abc");
Console.log(result == Comparison.EQUAL);
Sorting
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import System;
 
string[] arr = [ "Joe", "Frank", "Mary", "John" ];
arr.sort(); // 'System.Array<T>.sort' uses 'compare' to sort elements
Console.log(arr.join(", "));
Custom Sort
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import System;
import System.Assert;
 
string[] arr = [ "Joe", "Frank", "Mary", "John" ];
arr.sort(Comparison(string a, string b) {
    if (a < b) {
        return Comparison.LESS_THAN;
    }
    else if (a > b) {
        return Comparison.GREATER_THAN;
    }
    else {
        assert(a == b);
        return Comparison.EQUAL;
    }
});
Console.log(arr.join(", "));

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