input - How do I add a string value of an href using jquery? -

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i have input button has href. need add string after last / in href input text box. how can accomplish using jquery? here code: 

//this search button $('#switch-fighter-search-button-link').attr("href","/fighters/search/");  //this input box var sft = $('$switch-fighter-text').val(); 

$('#switch-fighter-search-button-link').attr("href","/fighters/search/" + $('$switch-fighter-text').val());

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