感谢您提前提供帮助。
首先，我是 angularjs 的初学者，因此我遇到了我希望是一个微不足道的挑战。如果我应该改变我的方法，请告诉我。我正在运行它来解决我需要帮助的问题。
我正在尝试从 angularjs 循环内部调用一个函数。
要从循环内部调用的角度设置和函数
function switch_img24(v){
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//folder zipped icon 24 x 24
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//excel icon 24 x 24
'xlsx': 'data:;base64,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',
'xls' : 'data:;base64,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',
//database icon 24 x 24
'db' : 'data:;base64,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',
}
return simg[v]
}
function allDocCtrl($scope){
//this will eventually be an ajax call but for now I have it as a hidden field
$scope.docsJson = $.parseJSON($("#doc_json").val());
//['file_name','regular_url','file_list','dir_name','dir_list']
rtn_html = ''
$scope.getExt = function(str){
var pattern = /\.[0-9a-z]+$/i;
var ext = (str).match(pattern);
var img = switch_img24(ext)
return img
}
}
HTML
<input type='hidden' id='doc_json' value='{'file_list':[
{
"file_name":"file.doc",
"url":"api/path..."
},
{
"file_name":"file.pdf",
"url":"api/path..."
},
{
"file_name":"file.txt",
"url":"api/path..."
},
]}'/>
<div id='due-diligence' ng-controller='allDocCtrl'>
<li ng-repeat="doc in docsJson.file_list">
{[{doc.file_name}]} who is {[{doc.url}]} years old.
<img src=getExt( doc.file_name ) width='15' height='15' />
</li>
</div>
所以我面临的挑战是从循环中调用 getExt( doc.file_name ) 任何和所有帮助都非常感谢！