Optionale: anyOptionalt: { Returns the value of the first element in the array where predicate is true, and undefined otherwise.
find calls predicate once for each element of the array, in ascending order, until it finds one where predicate returns true. If such an element is found, find immediately returns that element value. Otherwise, find returns undefined.
OptionalthisArg: anyIf provided, it will be used as the this value for each invocation of predicate. If it is not provided, undefined is used instead.
OptionalthisArg: anyStaticcomparatorStaticmodelStatic OptionalstaleOptionaloptions: OptionDetermines whether all the members of an array satisfy the specified test.
A function that accepts up to three arguments. The every method calls the predicate function for each element in the array until the predicate returns a value which is coercible to the Boolean value false, or until the end of the array.
OptionalthisArg: anyAn object to which the this keyword can refer in the predicate function. If thisArg is omitted, undefined is used as the this value.
Determines whether all the members of an array satisfy the specified test.
A function that accepts up to three arguments. The every method calls the predicate function for each element in the array until the predicate returns a value which is coercible to the Boolean value false, or until the end of the array.
OptionalthisArg: anyAn object to which the this keyword can refer in the predicate function. If thisArg is omitted, undefined is used as the this value.
Returns the elements of an array that meet the condition specified in a callback function.
A function that accepts up to three arguments. The filter method calls the predicate function one time for each element in the array.
OptionalthisArg: anyAn object to which the this keyword can refer in the predicate function. If thisArg is omitted, undefined is used as the this value.
Returns the elements of an array that meet the condition specified in a callback function.
A function that accepts up to three arguments. The filter method calls the predicate function one time for each element in the array.
OptionalthisArg: anyAn object to which the this keyword can refer in the predicate function. If thisArg is omitted, undefined is used as the this value.
Performs the specified action for each element in an array.
A function that accepts up to three arguments. forEach calls the callbackfn function one time for each element in the array.
OptionalthisArg: anyAn object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
Optionalposition: numberReturns the index of the first occurrence of a value in an array, or -1 if it is not present.
The value to locate in the array.
OptionalfromIndex: numberThe array index at which to begin the search. If fromIndex is omitted, the search starts at index 0.
Returns the index of the last occurrence of a specified value in an array, or -1 if it is not present.
The value to locate in the array.
OptionalfromIndex: numberThe array index at which to begin searching backward. If fromIndex is omitted, the search starts at the last index in the array.
Calls a defined callback function on each element of an array, and returns an array that contains the results.
A function that accepts up to three arguments. The map method calls the callbackfn function one time for each element in the array.
OptionalthisArg: anyAn object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
Removes the specified listener from the listener array for the event named eventName.
OptionaleventName: EventThe name of the event.
Optionallistener: ListenerThe callback function.
Optionalcontext: anyThe value of this provided for the call to listener
Returns a reference to the EventEmitter, so that calls can be chained.
Adds the listener function to the end of the listeners array for the event named eventName.
The name of the event.
The callback function.
Optionalcontext: anyThe value of this provided for the call to listener
Returns a reference to the EventEmitter, so that calls can be chained.
Adds a one-time listener function for the event named eventName.
The name of the event.
The callback function.
Optionalcontext: anyThe value of this provided for the call to listener
Returns a reference to the EventEmitter, so that calls can be chained.
Calls the specified callback function for all the elements in an array. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
A function that accepts up to four arguments. The reduce method calls the callbackfn function one time for each element in the array.
Calls the specified callback function for all the elements in an array. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
A function that accepts up to four arguments. The reduce method calls the callbackfn function one time for each element in the array.
If initialValue is specified, it is used as the initial value to start the accumulation. The first call to the callbackfn function provides this value as an argument instead of an array value.
Optionaloptions: { Optionalindex?: booleanOptionalsilent?: booleanOptionaloptions: OptionReturns a copy of a section of an array. For both start and end, a negative index can be used to indicate an offset from the end of the array. For example, -2 refers to the second to last element of the array.
Optionalstart: numberThe beginning index of the specified portion of the array. If start is undefined, then the slice begins at index 0.
Optionalend: numberThe end index of the specified portion of the array. This is exclusive of the element at the index 'end'. If end is undefined, then the slice extends to the end of the array.
Determines whether the specified callback function returns true for any element of an array.
A function that accepts up to three arguments. The some method calls the predicate function for each element in the array until the predicate returns a value which is coercible to the Boolean value true, or until the end of the array.
OptionalthisArg: anyAn object to which the this keyword can refer in the predicate function. If thisArg is omitted, undefined is used as the this value.
Synchronously calls each of the listeners registered for the event named eventName, in the order they were registered, passing the supplied arguments to each.
Rest...args: any[]Returns a reference to the EventEmitter, so that calls can be chained.
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