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As from the , we can call a filter such as like this: 从中我们可以调用像这样的过滤器:
{ { myDateInScope | date: 'yyyy-MM-dd' }}
Here date is a filter that takes one argument. 这里date是一个带有一个参数的过滤器。
What is the syntax to call filters with more parameters both from templates and from JavaScript code? 从模板和JavaScript代码调用带有更多参数的过滤器的语法是什么?
参考:
In templates, you can separate filter arguments by colons . 在模板中,您可以使用冒号分隔过滤器参数。
{ { yourExpression | yourFilter: arg1:arg2:... }}
From Javascript, you call it as 从Javascript,你称之为
$filter('yourFilter')(yourExpression, arg1, arg2, ...)
There is actually an example hidden in the filter docs. 实际上, 过滤器文档中隐藏了一个示例。
Example: 例:
Let's say you make a filter that can replace things with regular expressions: 假设您创建了一个可以用正则表达式替换事物的过滤器:
myApp.filter("regexReplace", function() { // register new filter return function(input, searchRegex, replaceRegex) { // filter arguments return input.replace(RegExp(searchRegex), replaceRegex); // implementation };});
Invocation in a template to censor out all digits: 在模板中调用以检查所有数字:
{
{ myText | regexReplace: '[0-9]':'X' }}
i mentioned in the below where i have mentioned the custom filter also , how to call these filter which is having two parameters 我在下面提到过我自己也提到了自定义过滤器,如何调用这些有两个参数的过滤器
countryApp.filter('reverse', function() { return function(input, uppercase) { var out = ''; for (var i = 0; i < input.length; i++) { out = input.charAt(i) + out; } if (uppercase) { out = out.toUpperCase(); } return out; }});
and from the html using the template we can call that filter like below 从使用模板的html我们可以像下面那样调用该过滤器
{ {inputString| reverse:true }}
here if you see , the first parameter is inputString and second parameter is true which is combined with "reverse' using the : symbol 在这里,如果你看到,第一个参数是inputString,第二个参数是true,它与使用:符号的“反向”组合
If you want to call your filter inside ng-options the code will be as follows: 如果要在ng-options中调用过滤器,代码如下:
ng-options="productSize as ( productSize | sizeWithPrice: product ) for productSize in productSizes track by productSize.id"
where the filter is sizeWithPriceFilter and it has two parameters product and productSize 过滤器的大小是sizeWithPriceFilter,它有两个参数product和productSize
If you need two or more dealings with the filter, is possible to chain them: 如果您需要与过滤器进行两次或更多次交易,可以将它们链接起来:
{ { value | decimalRound: 2 | currencySimbol: 'U$' }} // 11.1111 becomes U$ 11.11
像这样:
var items = $filter('filter')(array, {Column1:false,Column2:'Pending'});
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