javascript 在 map 函数之后执行一个函数
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Execute a function after a map function
提问by David Luque
I have this code
我有这个代码
$scope.items.map(function (item) {
if(item.keywords.indexOf($scope.formData.keyword) != -1){
array.push(bono);
}
})
And I need to execute a function with all the elements of the array when the map finish. How can I do this? I thought to stack the calls but I don't know how to do it.
当地图完成时，我需要使用数组的所有元素执行一个函数。我怎样才能做到这一点？我想堆叠调用，但我不知道该怎么做。
Thanks
谢谢
回答by zerkms
As soon as $scope.itemsis an array as you stated in the question and the Array.prototype.map()is synchronous - which means that you simply put the next statement after this code and it will be executed after the .map()has completed processing.
只要$scope.items是您在问题中所述的数组并且Array.prototype.map()是同步的 - 这意味着您只需将下一个语句放在此代码之后，它将在.map()完成处理后执行。
回答by Cristian Smocot
try this:
试试这个：
var array = [];
$scope.items.map(function (item) {
if(item.keywords.indexOf($scope.formData.keyword) != -1){
array.push(item);
}
});
myFunction(array);
Array.map()documentation:
Array.map()文档：
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map
回答by Nageshwar Reddy
try like this
像这样尝试
$scope.items.map(function (item) {
if(item.keywords.indexOf($scope.formData.keyword) != -1){
array.push(bono);
}
}).then(function(){}).then(function(){});
