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edited Jul 8, 2010 at 10:32

alex

If a string is immutable, does that mean that.... (let's assume JavaScript);

var str = 'foo';

alert(str.substr(1)); // oo

alert(str); // foo

Does it mean, when calling methods on a string, it will return the modified string, but it won't change the initial string?

If the string was mutable, does that mean the 2nd alert() would return oo as well?

If a string is immutable, does that mean that.... (let's assume JavaScript);

var str = 'foo';

alert(str.substr(1)); // oo

alert(str); // foo

Does it mean, when calling methods on a string, it will return the modified string, but it won't change the initial string?

If the string was mutable, does that mean the 2nd alert() would return oo as well?

If a string is immutable, does that mean that.... (let's assume JavaScript)

var str = 'foo';

alert(str.substr(1)); // oo

alert(str); // foo

Does it mean, when calling methods on a string, it will return the modified string, but it won't change the initial string?

If the string was mutable, does that mean the 2nd alert() would return oo as well?

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asked Jul 8, 2010 at 1:54

alex

What does immutable mean?

If a string is immutable, does that mean that.... (let's assume JavaScript);

var str = 'foo';

alert(str.substr(1)); // oo

alert(str); // foo

Does it mean, when calling methods on a string, it will return the modified string, but it won't change the initial string?

If the string was mutable, does that mean the 2nd alert() would return oo as well?