标签：gre tin include mos fun function name locale console
Generators offer flexible alternatives to working with arrays and how you want to iterate through the data. While most scenarios are covered by the methods included on Arrays such as "map" and "filter", generators are great for covering complex scenarios when writing all your logic in map and filter functions might become difficult.
let names = ["John", "Mindy", "Sally"] let result = names.filter(name => name.includes("y")).map(name => name.toLocaleLowerCase()) console.log(result) // ["mindy", "sally"] // -- Generator -- function* format(array: string[]) { for (let name of array) { if (name.includes("y")) { yield name.toLowerCase(); } } } console.log([...format(names)]); //["mindy", "sally"]
With Generator, we can do more control on result.
let names = ["John", "Mindy", "Sally"] let result = names.filter(name => name.includes("y")).map(name => name.toLocaleLowerCase()) console.log(result) // ["mindy", "sally"] // -- Generator -- function* format(array: string[]) { for (let name of array) { if (name.includes("y")) { yield name.toLowerCase(); // ["mindy", "sally"] yield name.toUpperCase(); // ["mindy", "MINDY", "sally", "SALLY"] yield* array; // ["mindy", "MINDY", "John", "Mindy", "Sally", "sally", "SALLY", "John", "Mindy", "Sally"] yield ‘END‘; // ["mindy", "MINDY", "John", "Mindy", "Sally", "END", "sally", "SALLY", "John", "Mindy", "Sally", "END"] } } } console.log([...format(names)]);
[Javascript] Compare a Generator to Using Array Map and Filter
标签：gre tin include mos fun function name locale console
原文地址：https://www.cnblogs.com/Answer1215/p/12168027.html
