Question

这对某些人来说应该很容易，我似乎无法正确理解语法。我有以下代码，我确信70％的代码可以用循环表示：有人可以开导我吗？

function AddNewEmail(){
var jFilesContainer = $( "#emails" );
var jUploadTemplate = $( "#email-templates div.template" );
var jUpload = jUploadTemplate.clone(); 
var strNewHTML = jUpload.html();
var intNewFileCount = (jFilesContainer.find( "div.template" ).length + 1); 
jUpload.attr( "id", ("emailedit[" + intNewFileCount + "]") );
strNewHTML = strNewHTML
    .replace(
        new RegExp( "::FIELD1::", "i" ),
        intNewFileCount
        )
            .replace(
        new RegExp( "::FIELD2::", "i" ),
        intNewFileCount
        )
            .replace(
        new RegExp( "::FIELD3::", "i" ),
        intNewFileCount
        )
                .replace(
        new RegExp( "::FIELD4::", "i" ),
        intNewFileCount
        )
                .replace(
        new RegExp( "::FIELD5::", "i" ),
        intNewFileCount
        )
                .replace(
        new RegExp( "::FIELD6::", "i" ),
        intNewFileCount
        )
                .replace(
        new RegExp( "::FIELD7::", "i" ),
        intNewFileCount
        )
                .replace(
        new RegExp( "::FIELD8::", "i" ),
        intNewFileCount
        )
                .replace(
        new RegExp( "::FIELD9::", "i" ),
        intNewFileCount
        )
                .replace(
        new RegExp( "::FIELD10::", "i" ),
        intNewFileCount
        )
                .replace(
        new RegExp( "::FIELD11::", "i" ),
        intNewFileCount
        ) 
            .replace(
        new RegExp( "::FIELD12::", "i" ),
        intNewFileCount
        ) 

;

jUpload.html( strNewHTML );
jFilesContainer.append( jUpload );
}

Answer 1

如果您使用正则表达式，请使用它们：

strNewHTML = strNewHTML.replace(/::FIELD\d{1,2}::/gi, intNewFileCount);

Answer 2

我会说

strNewHTML = strNewHTML.replace(/::FIELD\d+::/gi, intNewFileCount);

可以替代整个strNewHTML逻辑。不是循环，而是更短。

Answer 3

http://www.w3schools.com/js/js_obj_array.asp

http://www.w3schools.com/JS/js_loop_for.asp

Javascript循环语法

3 个答案: