how to change '(1,2,3,4)' to '1,2,3,4'

this is my code:

    var a='(1,2,3,4)'
    a=a.sl开发者_JS百科ice(-1,1)
    alert(a)

and i print nothing.

thanks

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I think you want to do:

a = a.slice(1, -1);

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a.substring(1,a.length-1)
1,2,3,4

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What about :

'(1,2,3,4)'.replace(/[()]/g, '')

Which will remove all ( and ) characters in the string, giving you :

"1,2,3,4"

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Another alternative:

var a='(1,2,3,4)';
a.replace(/^\((.*)\)$/, "$1");