I am in client side context. I have this html:
我在客户端环境中。我有这个html:
<p>Text text \n other text </p>
I want to match only \n element inside paragraph, and replace only this with "br" tag.
我只希望在段落中匹配\n元素,并将其替换为“br”标记。
I want to do this only inside tag "p" and for all match.
我只希望在标签"p"和所有匹配项中这样做。
I supposed to use regex in javascript.
我应该在javascript中使用regex。
Thanks and sorry for my bad english.
谢谢你,很抱歉我的英语说得不好。
2 个解决方案
#1
3
Use html()
method with callback and inside callback replace text using String#replace
method.
使用带有回调的html()方法,在回调内部使用字符串#替换方法替换文本。
$('p').html(function(i, htm) {
return htm.replace(/\\n/g, '<br>');
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p>Text text \n other text</p>
UPDATE 1 : If it's a string then use String#replace
method.
更新1:如果是字符串,那么使用string #replace方法。
console.log(
'<p>Text text \n other text</p>'.replace(/\n/g, '<br>')
)
UPDATE 2 : If the string contains other tag element and you just want to update the p
tag then do something like.
更新2:如果字符串包含其他标签元素,而你只想更新p标签,那么就做一些类似的事情。
var str = '<p>Text text \n other text</p>';
console.log(
// create a temporary div eleemnt
$('<div>', {
// set html content from string
html: str
})
// get all p tags
.find('p')
// iterate and replace \n
.html(function(i, htm) {
// replace \n with br tag
return htm.replace(/\n/g, '<br>')
})
// back to the temp div
.end()
// get it's updated html content
.html()
)
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
UPDATE 3 : With pure JavaScript by generating a temporary DOM element.
更新3:使用纯JavaScript生成临时DOM元素。
var str = '<p>Text text \n other text</p>';
// create a temporary div element
var div = document.createElement('div');
// set html content form string
div.innerHTML = str;
// get all p tags and convert into Array using Array.from
// for older browser use [].sclice.call instead
Array.from(div.getElementsByTagName('p'))
// iterate over p tags
.forEach(function(el) {
// update the html content
el.innerHTML = el.innerHTML.replace(/\n/g, '<br>')
});
// get updated html content
console.log(div.innerHTML);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
#2
0
You can use a for
loop with getElementsByTagName
:
可以使用带有getElementsByTagName的for循环:
for(i = 0; i < window.document.getElementsByTagName("p").length; i++){
window.document.getElementsByTagName("p")[i].innerHTML = window.document.getElementsByTagName("p")[i].innerHTML.replace(/\\n/g, "<br/>");
}
If this is inside a string and not inside the HTML, you can add it to a <div>
element while handling it like this:
如果它在字符串中,而不在HTML中,您可以将它添加到
var myString = "<p>Text text \n other text </p>";
var div = document.createElement("div");
div.innerHTML = myString;
for(i = 0; i < div.getElementsByTagName("p").length; i++){
div.getElementsByTagName("p")[i].innerHTML = div.getElementsByTagName("p")[i].innerHTML.replace(/\\n/g, "<br/>");
}
myString = div.innerHTML;
#1
3
Use html()
method with callback and inside callback replace text using String#replace
method.
使用带有回调的html()方法,在回调内部使用字符串#替换方法替换文本。
$('p').html(function(i, htm) {
return htm.replace(/\\n/g, '<br>');
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p>Text text \n other text</p>
UPDATE 1 : If it's a string then use String#replace
method.
更新1:如果是字符串,那么使用string #replace方法。
console.log(
'<p>Text text \n other text</p>'.replace(/\n/g, '<br>')
)
UPDATE 2 : If the string contains other tag element and you just want to update the p
tag then do something like.
更新2:如果字符串包含其他标签元素,而你只想更新p标签,那么就做一些类似的事情。
var str = '<p>Text text \n other text</p>';
console.log(
// create a temporary div eleemnt
$('<div>', {
// set html content from string
html: str
})
// get all p tags
.find('p')
// iterate and replace \n
.html(function(i, htm) {
// replace \n with br tag
return htm.replace(/\n/g, '<br>')
})
// back to the temp div
.end()
// get it's updated html content
.html()
)
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
UPDATE 3 : With pure JavaScript by generating a temporary DOM element.
更新3:使用纯JavaScript生成临时DOM元素。
var str = '<p>Text text \n other text</p>';
// create a temporary div element
var div = document.createElement('div');
// set html content form string
div.innerHTML = str;
// get all p tags and convert into Array using Array.from
// for older browser use [].sclice.call instead
Array.from(div.getElementsByTagName('p'))
// iterate over p tags
.forEach(function(el) {
// update the html content
el.innerHTML = el.innerHTML.replace(/\n/g, '<br>')
});
// get updated html content
console.log(div.innerHTML);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
#2
0
You can use a for
loop with getElementsByTagName
:
可以使用带有getElementsByTagName的for循环:
for(i = 0; i < window.document.getElementsByTagName("p").length; i++){
window.document.getElementsByTagName("p")[i].innerHTML = window.document.getElementsByTagName("p")[i].innerHTML.replace(/\\n/g, "<br/>");
}
If this is inside a string and not inside the HTML, you can add it to a <div>
element while handling it like this:
如果它在字符串中,而不在HTML中,您可以将它添加到
var myString = "<p>Text text \n other text </p>";
var div = document.createElement("div");
div.innerHTML = myString;
for(i = 0; i < div.getElementsByTagName("p").length; i++){
div.getElementsByTagName("p")[i].innerHTML = div.getElementsByTagName("p")[i].innerHTML.replace(/\\n/g, "<br/>");
}
myString = div.innerHTML;