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Tencent Cloud Mini Program Platform
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    Base Library

    Last updated: 2024-11-21 18:34:18
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      console

      The console.log method is used to output messages in the console window. This method can accept multiple parameters and concatenate their results for output.

      Math

      Properties

      E
      LN10
      LN2
      LOG2E
      LOG10E
      PI
      SQRT1_2
      SQRT2
      For information on using the above properties, refer to the ES5 standard.。

      Methods

      abs
      acos
      asin
      atan
      atan2
      ceil
      cos
      exp
      floor
      log
      max
      min
      pow
      random
      round
      sin
      sqrt
      tan
      For information on using the above properties, refer to the ES5 standard.

      JSON

      Methods

      stringify(object): Converts the object object into a JSON string and returns the string.
      parse(string): Converts the JSON string into an object and returns the object.
      Sample code:
      console.log(undefined === JSON.stringify());
      console.log(undefined === JSON.stringify(undefined));
      console.log("null"===JSON.stringify(null));
      
      console.log("111"===JSON.stringify(111));
      console.log('"111"'===JSON.stringify("111"));
      console.log("true"===JSON.stringify(true));
      console.log(undefined===JSON.stringify(function(){}));
      
      
      console.log(undefined===JSON.parse(JSON.stringify()));
      console.log(undefined===JSON.parse(JSON.stringify(undefined)));
      console.log(null===JSON.parse(JSON.stringify(null)));
      
      console.log(111===JSON.parse(JSON.stringify(111)));
      console.log("111"===JSON.parse(JSON.stringify("111")));
      console.log(true===JSON.parse(JSON.stringify(true)));
      
      console.log(undefined===JSON.parse(JSON.stringify(function(){})));
      

      Number

      Properties

      MAX_VALUE
      MIN_VALUE
      NEGATIVE_INFINITY
      POSITIVE_INFINITY
      For information on using the above properties, refer to the ES5 standard.

      Date

      Properties

      parse
      UTC
      now
      For information on using the above properties, refer to the ES5 standard.

      Global

      Properties

      NaN
      Infinity
      undefined
      For information on using the above properties, refer to the ES5 standard.

      Methods

      parseInt
      parseFloat
      isNaN
      isFinite
      decodeURI
      decodeURIComponent
      encodeURI
      encodeURIComponent
      For information on using the above properties, refer to the ES5 standard.

      

      
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