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操作系统：MacOS
项目开发工具：VS2015
Git上获取jQuery代码（），本文版本jQuery v3.5.1
根据Git上的说明，需要安装node.js
下载后安装，安装完成后，执行下列命令确认是否安装成功
进入jQuery所在目录jquery-3.5.1，执行下列操作
MacBook-Air:jquery-3.5.1 apple$ sudo npm install && grunt
Password:输入用户密码
npm WARN grunt-karma@3.0.1 requires a peer of karma@^3.0.0 but none is installed. You must install peer dependencies yourself.
up to date in 4.558s
28 packages are looking for funding
run `npm fund` for details
Running "eslint:dev" (eslint) task
Running "build:all:*" (build) task
>> File 'dist/jquery.js' created.
Running "uglify:all" (uglify) task
>> 1 sourcemap created.
>> 1 file created 287.63 kB → 89.51 kB
Running "remove_map_comment" task
Running "dist:*" (dist) task
Running "qunit_fixture" task
>> Updated ./test/data/qunit-fixture.js.
Running "babel:tests" (babel) task
Running "eslint:dist" (eslint) task
Running "node_document_missing" task
Running "node_document_passed" task
Running "node_document_present_originally" task
Running "node_iterable_with_native_symbol" task
Running "compare_size:files" (compare_size) task
>> Error: Command failed: git branch --no-color --verbose --no-abbrev --contains HEAD
>> fatal: Not a git repository (or any of the parent directories): .git
raw gz Sizes
287630 84860 dist/jquery.js
89476 30869 dist/jquery.min.js
raw gz Compared to last run
= = dist/jquery.js
= = dist/jquery.min.js
Done.
编译完成
将生成的jquery.min.js复制到项目中替换现有版本，现有版本为2.1.4。替换完验证一下，出现以下错误
经分析查阅，该错误是由
$("").load(function(){
})
这种写法引起，这种写法在3.5.1中已经不支持了，在3.5.1中需要改为
$("").on('load',function(){
})
修改后验证，成功。升级版本后是否还有其它问题，还需要更多验证。
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