使用for循环生成html内容
[英]Using for loops to generate html content
问题描述
I am trying to generate html content using a for loop, but I am having problems in how the content looks in the html.
我正在尝试使用 for 循环生成 html 内容，但是我在内容在 html 中的外观方面遇到了问题。
Lets say I have a Rhtml template and I want to generate paragraphs in a for loop:假设我有一个 Rhtml 模板，我想在 for 循环中生成段落：
<!DOCTYPE html>
<html lang="en">
<head>
</head>
<body>
<!--begin.rcode, echo=FALSE, message=FALSE, warning=FALSE
library(htmltools)
paragraphs = c("Paragraph1","Paragraph2","Paragraph3")
tags$div(
for(i in paragraphs){
print(tags$p(i))
}
)
end.rcode-->
</body>
</html>
The problem is that the html output is like this:问题是html输出是这样的：
## <p>Paragraph1</p>
## <p>Paragraph2</p>
## <p>Paragraph3</p>
And what I need is just three normal html paragraphs.而我需要的只是三个普通的 html 段落。 How can I do this using a for loop?我如何使用 for 循环来做到这一点？
1 个解决方案
解决方案1
1 已采纳 2020-11-10 01:32:45
Move the loop outside of tags$div .将循环移到tags$div 。
<!DOCTYPE html>
<html lang="en">
<head>
</head>
<body>
<!--begin.rcode, echo=FALSE, message=FALSE, warning=FALSE
library(htmltools)
paragraphs = c("Paragraph1","Paragraph2","Paragraph3")
p <- list()
for(i in paragraphs){
p <- c(p, list(tags$p(i)))
}
tags$div(p)
end.rcode-->
</body>
</html>
This can also be written with purr::map .这也可以用purr::map编写。
<!DOCTYPE html>
<html lang="en">
<head>
</head>
<body>
<!--begin.rcode, echo=FALSE, message=FALSE, warning=FALSE
library(htmltools)
paragraphs = c("Paragraph1","Paragraph2","Paragraph3")
tags$div(purrr::map(paragraphs, tags$p))
end.rcode-->
</body>
</html>
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