putting an underscore in its place

how do I take the string using jQuery

S开发者_如何学编程tandard Class

and turn it into this

Standard_Class

if this is the id

$('#some_id').text;

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Why do everything needs to be done with jQuery? How about a regex:

var result = 'Standard Class'.replace(/\s/g, '_');

and to modify the text into an existing element jQuery could be useful:

$('#some_id').text($('#some_id').text().replace(/\s/g, '_'));