core_function

Core function library, mainly used for the identification and judgment of types.

type(obj, [detail=false])

• Note
  • Type recognition, which returns the target type in the form of a string
• Parameters
  • obj Detect objects, which can be of any type
  • detail=false Whether to perform depth recognition
• Return
  • Return string，return the target type by string form
  • detail=false，reference types are recognized as object
  • detail=true，name recognition for reference types

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is(a,b,[abs=true])

• Note
  • Determine if the object is equal
• Parameters
  • a、b Detect objects, which can be of any type
  • abs=true Determine absolute equality when judging reference types (each data content is judged in depth)
• Return
  • Return true/false

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isSimple(value)

• Note
  • Determine if the object is a simple type
• Parameters
  • value Detect objects, which can be of any type
• Return
  • Return true/false
  • boolean/number/string，belonging to a simple type
  • null/undefined，belonging to a simple type

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isNull(value, [opt])

• Note
  • Determine if the object is null
• Parameters
  • value Detect objects, which can be of any type
  • opt Detecting parameters
    • opt.udf=true Whether to count undefined as null
    • opt.obj=false Whether the array/object is empty is null
    • opt is boolean，equivalent opt.udf
• Return
  • Return true/false

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isBool(value, [str=false])

• Note
  • Determine if the object is Boolean
• Parameters
  • value Detect objects, which can be of any type
  • str Whether to judge strings
    • str=true，Forces value to be converted to string determination
• Return
  • Return true/false

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isNumber(value, [opt])

• Note
  • Determine if the object is a number
• Parameters
  • value Detect objects, which can be of any type
  • opt Detecting parameters
    • opt.nan=false Whether to count Nan as a number
    • opt.str=false Whether to convert strings to numeric judgments
    • opt.int=true Whether to recognize only integers
    • opt.min=NaN Number less than min, not counted as numbers
    • opt.max=NaN Number greater than Max, not counted as numbers
    • opt is boolean，equivalent opt.nan
• Return
  • Return true/false
  • opt.int=false，Floating-point numbers are recognized, and scientific notation can be identified when opt.str=true at the same time

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isString(value, [empty=false])

• Note
  • Determine if the object is string
• Parameters
  • value Detect objects, which can be of any type
  • empty=false Whether an empty string is a string
• Return
  • Return true/false

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isFunction(value, [type])

• Note
  • Determine whether an object is function
• Parameters
  • value Detect objects, which can be of any type
  • type Detecting parameters
    • type=true，async/generator is not function
    • type can be valued as 'async', 'generator', at which point strict judgment types
• Return
  • Return true/false

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isArray(value, [arg=false])

• Note
  • Determine whether an object is an array
• Parameters
  • value Detect objects, which can be of any type
  • arg=false Whether the arguments object counts as an array
• Return
  • Return true/false

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isObject(value, [arg])

• Note
  • Determines whether an object is objects and can be used to distinguish whether it is a JSON data object
• Parameters
  • value Detect objects, which can be of any type
  • arg Detecting parameters
    • Default only recognition, basic object
    • arg='any'/true Any reference type counts as Object
    • arg=false Any reference type is not equal to null is Object
• Return
  • Return true/false

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isPromise(value)

• Note
  • Determine if the object is an Promise object
• Parameters
  • value Detect objects, which can be of any type
• Return
  • Return true/false

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isGenerator(value, [obj=false])

• Note
  • Determine whether the object is generator, and both functions and objects return true
• Parameters
  • value Detect objects, which can be of any type
  • obj=false Whether to detect generator objects
• Return
  • Return true/false

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isJSON(value)

• Note
  • Determine if the object is a JSON object
• Parameters
  • value Detect objects, which can be of any type
• Return
  • Return true/false

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isjQuery(value)

• Note
  • Determine if the object is a jquery object
• Parameters
  • value Detect objects, which can be of any type
• Return
  • Return true/false

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isDOM(value)

• Note
  • Determine if the object is a DOM object
• Parameters
  • value Detect objects, which can be of any type
• Return
  • Return true/false

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isDate(value, [str=false])

• Note
  • Determine if the object is an Dete object
• Parameters
  • value Detect objects, which can be of any type
  • str=false Whether to recognize string content
    • str=true，will perform string content parsing
• Return
  • Return true/false

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isTime(value, [str=false])

• Note
  • Determines whether an object is a Date object that contains time
• Parameters
  • value Detect objects, which can be of any type
  • str=false Whether to recognize string content
    • str=true，String content parsing, and the content must contain a time format
• Return
  • Return true/false

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isGuid(value)

• Note
  • Determine if the object is a GUID
• Parameters
  • value Detect objects, which can be of any type
    • value=string，will perform content parsing
    • Value values must conform to GUID rules
• Return
  • Return true/false

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between(value, b1, b2)

• Note
  • Determine whether the numbers are b1,b2 between
• Parameters
  • value Detect objects, which can be of any type
  • b1、b2 Source of Judgment
• Return
  • Return true/false
  • This function is an unsafe function and will be perfected in subsequent versions

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callback(value, [index=0])

• Note
  • Gets the callback function in the object
• Parameters
  • value Detection object, which can be an array or arguments object
  • index=0 Exclude the number of parameters
    • The function assumes that the last item of the detection object is a callback function, which is used to distinguish the number of parameters indexparameters when the decision is ignored
• Return
  • Return function

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each(value, callback, [opt])

• Note
  • Object Traversal function
• Parameters
  • value Traversing an object, which can be a array|object|string|set|map type
  • callback(item, index, type, list) Traversal function
    • item Traversing content
    • index Traversal serial Number，value=object，index is key
    • type Traversing content Types，opt.detail=true, item is value type
    • list Real Traversal objects，opt.desc=true，Traversing an object is not equal to a real traversal object
    • When the traversal function returns to false inside, the traversal can be interrupted
  • opt Detecting parameters
    • opt.detail=false Whether to identify traversal content types
    • opt.force=false Whether to force the use of array recognition
    • opt.index=0 Start traversal position, effective when value=array/string
    • opt.desc=false Whether in reverse order, effective when value=array/string
    • opt=boolean，equivalent opt.detail
    • opt=number，equivalent opt.index
• Return
  • Return true/false，Whether to traverse complete
  • Unable to traverse object or traverse interrupt, will return false

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unique(value, [write=false])

• Note
  • unique function
• Parameters
  • value Detection object must be an array object
  • write=false Whether to change the detection object
    • write=true，Will overwrite the value content, the reference remains the same
• Return
  • Return array，has been de-reset the array

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has(value, list, [callback])

• Note
  • Determines whether an object is contained within a list object
• Parameters
  • value Detect objects, which can be of any type
  • list Detection list, which can be array/object/set/map object
  • callback Triggers a callback function when detection exists
• Return
  • Return true/false

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clone(src, dest, [opt])

• Note
  • Secure copy function
• Parameters
  • src Copy sources, which can be of any type
  • dest Copy targets, which can be of any type
  • opt Detecting parameters
    • opt.deep=false Deep copy, and whether to merge content when the copy target is a reference type
    • opt.write=true Whether to rewrite dest
      • opt.write=true，Will overwrite the dest content, the reference remains the same
• Return
  • Return Final copy content, type determined by src and dest

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