🗒️Typescript-Generator/Iterator
2023-5-4|2023-5-30
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A generator in TypeScript is a function that can be paused and resumed at any point. This is done using the
yield keyword. Generators are useful for creating iterators, which are objects that can be iterated over. Iterators are used in many different places in TypeScript, such as for loops, map functions, and filter functions.A Simple Generator
sync/async is supported when using a
generatorA Simple Iterator
An
iterator in TypeScript is an object that allows you to traverse some container, such as an array, set, argument, nodelist, or map. It has a next() method that returns an object with the properties value and is done. The value property is the next value in the iteration sequence, and the done property is a boolean that indicates whether the iteration has finished.Create an Iterator to loop through every lists
Syntactic sugar(for..of..)
for..of.. cannot applied to object
loop through an object
We should know that the substructure of deconstruction or “…” operator are also an iterator
Tips
Iterator of an array could have breakpoints
However, iterator of a generator could not have breakpoints