Js阵列采取elemt以前

代码示例

3
0

js加元,以前的阵列

//Add element to front of array
var numbers = ["2", "3", "4", "5"];
numbers.unshift("1");
//Result - numbers: ["1", "2", "3", "4", "5"]
1
0

javascript动元件阵列以前

for(var i = 0; i<$scope.notes.length;i++){
	if($scope.notes[i].is_important){
    	var imortant_note = $scope.notes.splice(i,1);
    	$scope.notes.unshift(imortant_note[0]);//push to front
	}
}
0
0

js阵列采取elemt以前

let data = [0, 1, 2, 3, 4, 5];
let index = 3;
data.unshift(data.splice(index, 1)[0]);
// data = [3, 0, 1, 2, 4, 5]

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