WeChat gadget JavaScript support situation
May 17, 2021
WeChat Mini Program Development Document
Table of contents
JavaScript support
Run limits
For security reasons, dynamic execution of JS code is not supported in small programs, i.e.:
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The use of eval to execute JS code is not supported
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Creating functions with new Function is not supported
Client ES6 API support
WeChat Systrup already supports the vast majority of ES6 APIs, as follows (some APIs depend on system versions):
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String
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iOS8
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iOS9
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iOS10+
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Android
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codePointAt
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normalize
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✘
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✘
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includes
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startsWith
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endsWith
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repeat
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String.fromCodePoint
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Array
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iOS8
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iOS9
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iOS10+
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Android
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copyWithin
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find
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findIndex
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fill
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entries
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keys
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values
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✘
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✘
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includes
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✘
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Array.from
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Array.of
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Number
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iOS8
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iOS9
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iOS10+
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Android
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isFinite
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isNaN
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parseInt
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parseFloat
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isInteger
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EPSILON
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isSafeInteger
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Math
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iOS8
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iOS9
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iOS10+
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Android
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trunc
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sign
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cbrt
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clz32
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imul
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fround
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hypot
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expm1
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log1p
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log10
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log2
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sinh
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cosh
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tanh
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asinh
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acosh
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atanh
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Object
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iOS8
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iOS9
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iOS10+
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Android
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is
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assign
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getOwnPropertyDescriptor
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keys
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getOwnPropertyNames
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getOwnPropertySymbols
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Other
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iOS8
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iOS9
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iOS10+
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Android
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Symbol
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Set
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Map
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Proxy
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✘
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✘
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✘
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Reflect
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Promise
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