| html | "<div> <h1> {{question}} </h1> <ul> <li>{{choice1}}</li> <li>{{choice2}}</li> <li>{{choice3}}</li> <li>{{choice4}}</li> </ul> </div>" |
| randomChoise | 2 |
| newCode | "<div> <h1> {{question}} </h1> <ul> <li>{{choice1}}</li> <li class='selected'>{{choice2}}</li> <li>{{choice3}}</li> <li>{{choice4}}</li> </ul> </div>" |
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| const html = `<div> <h1> {{question}} </h1> | |
| <ul> | |
| <li>{{choice1}}</li> | |
| <li>{{choice2}}</li> | |
| <li>{{choice3}}</li> | |
| <li>{{choice4}}</li> | |
| </ul> | |
| </div>`; | |
| const randomChoise = (html, tagName, pos) => { | |
| const regExp = new RegExp(`<${tagName}`, 'g'); | |
| let nbMatch = 0; | |
| let newHTML = html.replace(regExp, function (match) { | |
| if (nbMatch++ == pos) { | |
| return `${match} class='selected'` | |
| } else { | |
| return match; | |
| } | |
| }) | |
| return newHTML; | |
| } | |
| const newCode = randomChoise(html, 'li', 2); | |
| console.log(newCode) |