I want to clean up the user AuthData saved in Mobile when uninstalling. Use AsyncStorage to save AuthData.
Is there any mechanism to detect App Uninstall in ReactNative It seems impossible, esp
Tag: data
Extract xPath, Re, CSS
XPATH
(1)/Extract layer by layer
(2)text() Extract the text below the label
(3)/ /Tag name extract all tags
(4)//Tag name[num>=1] Extract sibling nodes with the same tag nam
Dojo EnhancedGrid question: For example, 5 lines of data can only display 4 lines, 10 lines of data display 7 lines
The reason is that the width of all columns plus one block exceeds the width set by the table, so 5 rows can only display 4 rows when initializing. In fact, the total width of all columns is less than the width set by the grid table. AutoWidth:true
Shell script does not use Data functions to implement a date query
The shell script realizes the query N days before or N days after the specified date 1 1 span> #!/bin/bash
2 func(){
3 read -p “Please enter the year, month and day (format: 2019-01-01): ”
Data Structure and Algorithm – Arrange
An array is a data structure composed of a collection of elements of the same type, and a contiguous memory is allocated for storage. The index of the element can be used to calculate the storage a
Treat data dropwear using a characteristic vector PCA using a covariance matrix.
Take 2-dimensional features to facilitate graphic display
import matplotlib.pyplot as plt
from sklearn.decomposition import PCA
from sklearn.datasets import load_iris
data = load_iris()
Check and determine the CRC algorithm from the data CRC – embedded application.
I have a set of data protected by a 16-bit checksum and I need to correct it. The checksum locations are known, the exact area where they are calculated and the exact algorithm used to calculate th
Use variables with regular expressions to find data in MongoDB (Meteor APP)
I need to get data from Mongodb, depending on what I’m searching for. It works fine in the next two examples:
//Example 1;
var variable = “car”; Items.find({“description”: variable}).fetch()
Data structure 4
Get element operation Realize the specific operation of GetElem, which is to return the element value of the i-th position in the linear table L . (We only need to return the value of the i-1th sub
Linux (CentOS7) Install Oracle11.0 Data Dictionary Initialization, Listening, Network, Create Some Configuration
#Create data dictionary and pl/sql package
@/u01/app/oracle/product/11.2.0/db_1/rdbms/admin/catalog.sql;
@/u01/app/oracle/product/11.2.0/db_1/rdbms/admin/catproc.sql;
@/u01/app/oracle/product/11.2.