怎么在微信小程序中操作數(shù)組

在微信小程序中操作數(shù)組的方法：1.使用push()函數(shù)向數(shù)組添加數(shù)據(jù)；2.使用split()函數(shù)刪除數(shù)組數(shù)據(jù)；3.使用setData方法修改數(shù)組數(shù)據(jù)；

具體方法如下：

1.使用push()函數(shù)向數(shù)組添加一條數(shù)據(jù)

saveNote: function(e) {
var obj = e.detail. value;
var title = obj. title;
var detail = obj .detail;
if(tit1e.1ength<=0 || detail. 1ength<=0){
return;
}
this . data . notes. push(obj);
var update = this. data. notes;
console. log(update);
app. globalData.notes = update ;
wx. redirectTo({
url: ' . . /notes/notes '
})
}

2.使用split()函數(shù)刪除數(shù)組中的數(shù)據(jù)

Wx. showModal({
title: '提示'，
content:'是 否刪除該紀(jì)錄',
success:function(res){
if(res. . confirm){
var notes =that. data. notes;
notes. splice(id,1);
that. setData({
notes: notes
})
console .1og("刪除成功");
}
}
})

3.使用setData方法修改數(shù)組中的數(shù)據(jù)

saveNote: function(e) {
var obj = e.detail. value;
var title = obj. title;
var detail = obj. detail;
if(tit1e.length<=0 || detail.length<=0){
return;
}
war that = this;
var notes =that . data. notes;
var id = that.data.id;
notes[id] = obj;
app. globalData.notes = notes;
WX . redirectToft({
url: ' . . /notes/notes '
})
}
})