Question

How to compares two strings to indicate whether a string come before or after or the same in JavaScript

Answer 1

document.write('a'.localeCompare('b') + "<br />");
document.write('b'.localeCompare('a') + "<br />");
document.write('c'.localeCompare('c') + "<br />");


/*
run:

-1
1
0

*/

 

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Answer 2

document.write('abc'.localeCompare('a') + "<br />");
document.write('abc'.localeCompare('b') + "<br />");
document.write('abc'.localeCompare('x') + "<br />");
document.write('abc'.localeCompare('bac') + "<br />");
document.write('abc'.localeCompare('abc') + "<br />");

s1 = 'abc';
document.write(s1.localeCompare('abc') + "<br />");

/*
run:

1
-1
-1
-1
0
0

*/

 

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