Javascript替換不會替換

Question

此代碼中的模式不會替換括號。我也試過「/（|）/ g」。

var re = "/[^a-z]/g", 
    txt = navsel.options[i].text.split(" ")[0], // here I get the text from a select and I split it. 
    // What I expect is strings like "(en)" , "(el)" etc 
    txt = txt.replace(re," ") 

在此先感謝

Answer 1

你的正則表達式是一個字符串，這將嘗試更換該字符串完全相同。正則表達式對象周圍沒有引號，只是分隔符。試着這樣說：

var re = /[^a-z]/g, 
    txt = navsel.options[i].text.split(" ")[0], // here I get the text from a select and I split it. 
    txt = txt.replace(re," "); 

Answer 2

或者如果你喜歡的字符串（和更明確的類型）：

var re = new RegExp("[^a-z]", "g")