How to use mini program push

The push() method in the applet can add one or more elements to the end of the array and return the new length. When push encounters an array parameter, it treats the entire array parameter as one element.

Syntax

arrayObject.push(newelement1,newelement2,....,newelementX)

The functions of push and concat are very similar:

var arr = [];
arr.push(1);
arr.push(2);
arr.push([3, 4])
arr.push(5, 6);
arr = arr.concat(7);
arr = arr.concat([8, 9]);
arr = arr.concat(10, 11);
for(var i in arr){
  console.log(i+"-----"+arr[i]);
}

The printing result is as follows:

index.js [sm]: 180 0-----1

index.js [sm]:180 1-----2

index.js [sm]:180 2-----3 ,4

index.js [sm]:180 3-----5

index.js [sm]:180 4-----6

index.js [sm]:180 5-----7

index.js [sm]:180 6-----8

index.js [sm]:180 7-----9

index.js [sm]:180 8-----10

index.js [sm]:180 9-----11

Recommendation: " Mini Program Development Tutorial"

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