Merge pull request phuocng#486 from 1milligram/format-str

Format a string

snippets/string/format-a-string.md

@@ -1,30 +1,28 @@
 ---
-title: Format a String (Java style)
+title: Format a string
 category: String
 ---
 
 **JavaScript version**
 
 ```js
-const format = (str, ...vals) => vals.reduce((s,v,i) => s.replace(new RegExp('\\{' + i + '\\}', 'g'), v), str)
+const format = (str, ...vals) => vals.reduce((s, v, i) => s.replace(new RegExp('\\{' + i + '\\}', 'g'), v), str);
 ```
 
 **TypeScript version**
 
-```js
-const format = (str: string, ...vals: unknown[]): string => vals.reduce((s,v,i) => s.replace(new RegExp('\\{' + i + '\\}', 'g'), v), str);
+```ts
+const format = (str: string, ...vals: unknown[]): string => vals.reduce((s, v, i) => s.replace(new RegExp('\\{' + i + '\\}', 'g'), v), str);
 ```
 
 **Examples**
 
 ```js
 const template = 'My name is {0} and I am {1} years old';
-const name1 = 'John', age1 = 30;
-const name2 = 'Jane', age2 = 20;
 
-console.log(format(template, name1, age1));
-// output: My name is John and I am 30 years old
+format(template, 'John', 30));
+// My name is John and I am 30 years old
 
-console.log(format(template, name2, age2));
-// output: My name is Jane and I am 20 years old
+format(template, 'Jane', 20);
+// My name is Jane and I am 20 years old
 ```