Custom filter giving “Cannot read property 'slice' of undefined” in AngularJS
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自定义angularjs 过滤器,用于选择一个数组的一部分,使用了数组的slice()方法,但是会报错:“Cannot read property ‘slice’ of undefined”,可以这样解决:
app.filter('startFrom', function() { return function(input, start) { if (!input || !input.length) { return; } start = +start; //parse to int return input.slice(start); }});
因为当angular 第一次执行 $digsest 循环的时候,它会执行自定义的过滤器,而此时是没有值的所有会报错,解决的方法如上所示!
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