How to delete the specified content in the array?
Mainly the application of splice function, this function is very powerful and very useful.
We deal with the problem in two cases:
① Delete a specified element in the array.
There is only one element with value 1 in the array, and our task is to delete this element with value 1.
var array = [88,1,5,6,505,85,77,50];
for(var i = 0; i < array.length; i++){
if(array[i] == 1){
array.splice(i,1);
}
}
console.log('删除1后数组的内容为',array);
①Delete all specified elements in the array.
There are n 1s in the array, and my task is to delete all elements with a value of 1.
var array = [88,1,1,1,5,6,1,1,1,50,1];
for(var i = 0; i < array.length; i++){
if(array[i] == 1){
array.splice(i,1);
i = i-1;
}
}
console.log('全部删除1后的数组内容为',array);
I mainly encountered these two situations. If there are other needs to solve difficulties, you can communicate more in the comment area.
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