tencent cloud

Tencent Cloud Super App as a Service

Release Notes and Announcements
Announcement: Tencent Cloud Mini Program Platform Renamed to Tencent Cloud Super App as a Service on January 2, 2025
Console Updates
Android SDK Updates
iOS SDK Updates
Flutter SDK Updates
IDE Updates
Base Library Updates
Product Introduction
Overview
Strengths
Use Cases
Purchase Guide
Billing Overview
Pay-As-You-Go Billing
Renewal Guide
Service Suspension Instructions
Getting Started
Plan Management
Overview
Console Account Management
Storage Configuration
Acceleration Configuration
Branding Configurations
Platform Features
Console Login
Users and Permission System
Mini Program Management
Mini Game Management
Superapp Management
Commercialization
Platform Management
User Management
Team Management
Operations Management
Security Center
Code Integration Guide
Getting Demo and SDK
Android
iOS
Flutter
Superapp Server
GUID Generation Rules
Mini Program Development Guide
Mini Program Introduction and Development Environment
Mini Program Code Composition
Guide
Framework
Components
API
Server Backend
JS SDK
Base Library
IDE Operation Instructions
Mini Game Development Guide
Guide
API
Server Backend
Practice Tutorial
Mini Program Login Practical Tutorial
Mini Program Subscription Message Practical Tutorial
Payment Practical Tutorial
Ad Integration Practical Tutorial
Mini Game Subscription Message Practical Tutorial
API Documentation
History
Introduction
API Category
Making API Requests
Operation Management APIs
User Management APIs
Team Management APIs
Sensitive API-Related APIs
Role Management APIs
Platform Management APIs
Other Console APIs
Mini Program or Mini Game APIs
Management-Sensitive APIs
Global Domain Management APIs
Superapp APIs
Data Types
Agreements
Service Level Agreement
Data Processing and Security Agreement
SDK Privacy Policy Module
SDK Data Processing and Security Agreement Module
DocumentaçãoTencent Cloud Super App as a ServiceMini Program Development GuideFrameworkWXS Syntax ReferenceVariables

Variables

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Última atualização: 2025-03-25 11:41:05

Concepts

Variables in WXS are references to values;
Variables that are not declared and used by direct assignment are defined as global variables;
If a variable is declared without being assigned a value, the default value is undefined;
var behaves in the same way as javascript, there will be variable lifting.
var foo = 1;
var bar = "hello world";
var i; // i === undefined
In the above code, three variables foo, bar and i are declared. Then, foo is assigned the value 1 and bar is assigned the string "hello world".

Variable Naming

Variable naming must conform to the following two rules:
The first character must be: letter (a-zA-Z), underscore (_);
The remaining characters can be: letters (a-zA-Z), underscore (_), numbers (0-9).

Reserved Identifier

The following identifiers cannot be used as variable names:
delete
void
typeof

null
undefined
NaN
Infinity
var

if
else

true
false

require

this
function
arguments
return

for
while
do
break
continue
switch
case
default
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