【转】捆绑和缩小(BundleConfig.RegisterBundles) 第二章 : Minification (重点理解)

缩小

缩小执行各种不同的代码优化和脚本或 css,如删除不必要的空白和注释和缩短到一个字符的变量名。考虑下面的 JavaScript 函数。

AddAltToImg = function (imageTagAndImageID, imageContext) {
    ///<signature>
    ///<summary> Adds an alt tab to the image
    // </summary>
    //<param name="imgElement" type="String">The image selector.</param>
    //<param name="ContextForImage" type="String">The image context.</param>
    ///</signature>
    var imageElement = $(imageTagAndImageID, imageContext);
    imageElement.attr('alt', imageElement.attr('id').replace(/ID/, ''));
}

后缩小,功能被减少到以下内容:

AddAltToImg = function (n, t) { var i = $(n, t); i.attr("alt", i.attr("id").replace(/ID/, "")) }

除了删除的评论和多余的空格,下面的参数和变量名被重命名 (缩短),如下所示:

源语言 重命名
imageTagAndImageID n
imageContext t
imageElement i

 

原文:

Minification performs a variety of different code optimizations to scripts or css, such as removing unnecessary white space and comments and shortening variable names to one character. Consider the following JavaScript function.

AddAltToImg = function (imageTagAndImageID, imageContext) {
    ///<signature>
    ///<summary> Adds an alt tab to the image
    // </summary>
    //<param name="imgElement" type="String">The image selector.</param>
    //<param name="ContextForImage" type="String">The image context.</param>
    ///</signature>
    var imageElement = $(imageTagAndImageID, imageContext);
    imageElement.attr('alt', imageElement.attr('id').replace(/ID/, ''));
}

After minification, the function is reduced to the following:

AddAltToImg = function (n, t) { var i = $(n, t); i.attr("alt", i.attr("id").replace(/ID/, "")) }

In addition to removing the comments and unnecessary whitespace, the following parameters and variable names were renamed (shortened) as follows:

Original Renamed
imageTagAndImageID n
imageContext t
imageElement i
posted @ 2017-09-22 14:17  逍何  阅读(82)  评论(0)    收藏  举报