diff --git a/1-js/05-data-types/06-iterable/article.md b/1-js/05-data-types/06-iterable/article.md index cd6c074b..1ccbaea0 100644 --- a/1-js/05-data-types/06-iterable/article.md +++ b/1-js/05-data-types/06-iterable/article.md @@ -121,7 +121,7 @@ Arrays and strings are most widely used built-in iterables. For a string, `for..of` loops over its characters: ```js run -for(let char of "test") { +for (let char of "test") { alert( char ); // t, then e, then s, then t } ``` @@ -130,8 +130,8 @@ And it works right with surrogate pairs! ```js run let str = '𝒳😂'; -for(let char of str) { - alert(char); // 𝒳, and then 😂 +for (let char of str) { + alert( char ); // 𝒳, and then 😂 } ``` @@ -139,7 +139,7 @@ for(let char of str) { Normally, internals of iterables are hidden from the external code. There's a `for..of` loop, that works, that's all it needs to know. -But to understand things a little bit more deeper let's see how to create an iterator explicitly. +But to understand things a little bit deeper let's see how to create an iterator explicitly. We'll iterate over a string the same way as `for..of`, but with direct calls. This code gets a string iterator and calls it "manually": @@ -151,7 +151,7 @@ let str = "Hello"; let iterator = str[Symbol.iterator](); -while(true) { +while (true) { let result = iterator.next(); if (result.done) break; alert(result.value); // outputs characters one by one @@ -184,7 +184,7 @@ let arrayLike = { // has indexes and length => array-like *!* // Error (no Symbol.iterator) -for(let item of arrayLike) {} +for (let item of arrayLike) {} */!* ``` @@ -258,7 +258,7 @@ Technically here it does the same as: let str = '𝒳😂'; let chars = []; // Array.from internally does the same loop -for(let char of str) { +for (let char of str) { chars.push(char); }