31 lines
501 B
Markdown
31 lines
501 B
Markdown
# Insert After Head
|
|
|
|
We have a string with an HTML Document.
|
|
|
|
Write a regular expression that inserts `<h1>Hello</h1>` immediately after `<body>` tag. The tag may have attributes.
|
|
|
|
For instance:
|
|
|
|
```js
|
|
let regexp = /your regular expression/;
|
|
|
|
let str = `
|
|
<html>
|
|
<body style="height: 200px">
|
|
...
|
|
</body>
|
|
</html>
|
|
`;
|
|
|
|
str = str.replace(regexp, `<h1>Hello</h1>`);
|
|
```
|
|
|
|
After that the value of `str` should be:
|
|
|
|
```html
|
|
<html>
|
|
<body style="height: 200px"><h1>Hello</h1>
|
|
...
|
|
</body>
|
|
</html>
|
|
```
|