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This article mainly explains "how to determine whether Mini Program's API callback parameter component is in the current version". The content in the article is simple and clear, and it is easy to learn and understand. Please follow Xiaobian's train of thought to slowly deepen together to study and learn "how to determine whether Mini Program's API callback parameter component is in the current version".

Wx.canIUse (String)

1. String parameter description: use ${API}. ${method}. ${param}. ${options} or ${component}. ${attribute}. ${option}, for example:

${API} stands for API name

${method} represents the calling method. Valid values are return, success, object, callback.

${param} represents a parameter or a return value

${options} represents the optional value of the parameter

${component} represents the component name

${attribute} represents component properties

${option} represents the optional value of the component property

2. Determine whether Mini Program's API callback parameter components are available in the current version. Example:

Wx.canIUse ('openBluetoothAdapter')

Wx.canIUse ('getSystemInfoSync.return.screenWidth')

Wx.canIUse ('getSystemInfo.success.screenWidth')

Wx.canIUse ('showToast.object.image')

Wx.canIUse ('onCompassChange.callback.direction')

Wx.canIUse ('request.object.method.GET')

Wx.canIUse ('contact-button')

Wx.canIUse ('text.selectable')

Wx.canIUse ('button.open-type.contact')

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