JavaScript: Replacing (all) certain words on a web page
I am having trouble with some code for a chrome extension. The code is supposed to replace a word with another one. It does this, however, I would only like it to replace a word if it is within certain tags such as <p></p> or header tags. At the moment it replaces all the words in the HTML file within the <body></body>. This sometimes interferes with the HTML code and can break certain features of a website. Here's what I have currently.
document.body.innerHTML = document.body.innerHTML.replace(newRegExp("old", "g"), "new");
Thank you for the help!
javascript html
google-chrome edited Nov 21 '18 at 19:23
Vivek Athalye
2,53611629
asked Nov 21 '18 at 19:19
F.LewisF.Lewis
11
add a comment |
I am having trouble with some code for a chrome extension. The code is supposed to replace a word with another one. It does this, however, I would only like it to replace a word if it is within certain tags such as <p></p> or header tags. At the moment it replaces all the words in the HTML file within the <body></body>. This sometimes interferes with the HTML code and can break certain features of a website. Here's what I have currently.
document.body.innerHTML = document.body.innerHTML.replace(newRegExp("old", "g"), "new");
Thank you for the help!
javascript html
google-chrome edited Nov 21 '18 at 19:23
Vivek Athalye
2,53611629
asked Nov 21 '18 at 19:19
F.LewisF.Lewis
11
2
possible duplicate stackoverflow.com/questions/47688518/…
– William Chong
Nov 21 '18 at 19:23
1
Possible duplicate of Replace words in the body text
– Jordan S
Nov 21 '18 at 19:23
add a comment |
I am having trouble with some code for a chrome extension. The code is supposed to replace a word with another one. It does this, however, I would only like it to replace a word if it is within certain tags such as <p></p> or header tags. At the moment it replaces all the words in the HTML file within the <body></body>. This sometimes interferes with the HTML code and can break certain features of a website. Here's what I have currently.
document.body.innerHTML = document.body.innerHTML.replace(newRegExp("old", "g"), "new");
Thank you for the help!
javascript html
google-chrome edited Nov 21 '18 at 19:23
Vivek Athalye
2,53611629
asked Nov 21 '18 at 19:19
F.LewisF.Lewis
11
I am having trouble with some code for a chrome extension. The code is supposed to replace a word with another one. It does this, however, I would only like it to replace a word if it is within certain tags such as <p></p> or header tags. At the moment it replaces all the words in the HTML file within the <body></body>. This sometimes interferes with the HTML code and can break certain features of a website. Here's what I have currently.
document.body.innerHTML = document.body.innerHTML.replace(newRegExp("old", "g"), "new");
Thank you for the help!
javascript html
google-chrome javascript html
google-chrome edited Nov 21 '18 at 19:23
Vivek Athalye
2,53611629
asked Nov 21 '18 at 19:19
F.LewisF.Lewis
11
edited Nov 21 '18 at 19:23
Vivek Athalye
2,53611629
asked Nov 21 '18 at 19:19
F.LewisF.Lewis
11
edited Nov 21 '18 at 19:23
Vivek Athalye
2,53611629
edited Nov 21 '18 at 19:23
Vivek Athalye
2,53611629
edited Nov 21 '18 at 19:23
Vivek Athalye
2,53611629
2,53611629
asked Nov 21 '18 at 19:19
F.LewisF.Lewis
11
asked Nov 21 '18 at 19:19
F.LewisF.Lewis
11
asked Nov 21 '18 at 19:19
F.LewisF.Lewis
11
11
2
possible duplicate stackoverflow.com/questions/47688518/…
– William Chong
Nov 21 '18 at 19:23
1
Possible duplicate of Replace words in the body text
– Jordan S
Nov 21 '18 at 19:23
add a comment |
2
possible duplicate stackoverflow.com/questions/47688518/…
– William Chong
Nov 21 '18 at 19:23
1
Possible duplicate of Replace words in the body text
– Jordan S
Nov 21 '18 at 19:23
2
2
possible duplicate stackoverflow.com/questions/47688518/…
– William Chong
Nov 21 '18 at 19:23
possible duplicate stackoverflow.com/questions/47688518/…
– William Chong
Nov 21 '18 at 19:23
1
1
Possible duplicate of Replace words in the body text
– Jordan S
Nov 21 '18 at 19:23
Possible duplicate of Replace words in the body text
– Jordan S
Nov 21 '18 at 19:23
add a comment |
1 Answer
1
active
oldest
votes
So just loop over all the elements that you care about and do the replacement on those elements only.
// Get all the elements that you care about into an array
let elements = Array.prototype.slice.call(document.querySelectorAll("p, header"));
// Loop over the items in the array
elements.forEach(function(el){
// Do the replace on the element
el.textContent = el.textContent.replace(/text/g, "letters");
});<header>This is some text in a header</header>
<h1>This is some text in an h1</h1>
<div>This is some text in a div</div>
<p>This is some text in a p</p>
<div>This is some text in a div</div>
<div>This is some text in a div
<p>This text is inside of a p with lots of text</p>
</div>answered Nov 21 '18 at 19:28
Scott MarcusScott Marcus
39.5k52038
add a comment |
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1 Answer
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1 Answer
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So just loop over all the elements that you care about and do the replacement on those elements only.
// Get all the elements that you care about into an array
let elements = Array.prototype.slice.call(document.querySelectorAll("p, header"));
// Loop over the items in the array
elements.forEach(function(el){
// Do the replace on the element
el.textContent = el.textContent.replace(/text/g, "letters");
});<header>This is some text in a header</header>
<h1>This is some text in an h1</h1>
<div>This is some text in a div</div>
<p>This is some text in a p</p>
<div>This is some text in a div</div>
<div>This is some text in a div
<p>This text is inside of a p with lots of text</p>
</div>answered Nov 21 '18 at 19:28
Scott MarcusScott Marcus
39.5k52038
add a comment |
So just loop over all the elements that you care about and do the replacement on those elements only.
// Get all the elements that you care about into an array
let elements = Array.prototype.slice.call(document.querySelectorAll("p, header"));
// Loop over the items in the array
elements.forEach(function(el){
// Do the replace on the element
el.textContent = el.textContent.replace(/text/g, "letters");
});<header>This is some text in a header</header>
<h1>This is some text in an h1</h1>
<div>This is some text in a div</div>
<p>This is some text in a p</p>
<div>This is some text in a div</div>
<div>This is some text in a div
<p>This text is inside of a p with lots of text</p>
</div>answered Nov 21 '18 at 19:28
Scott MarcusScott Marcus
39.5k52038
add a comment |
So just loop over all the elements that you care about and do the replacement on those elements only.
// Get all the elements that you care about into an array
let elements = Array.prototype.slice.call(document.querySelectorAll("p, header"));
// Loop over the items in the array
elements.forEach(function(el){
// Do the replace on the element
el.textContent = el.textContent.replace(/text/g, "letters");
});<header>This is some text in a header</header>
<h1>This is some text in an h1</h1>
<div>This is some text in a div</div>
<p>This is some text in a p</p>
<div>This is some text in a div</div>
<div>This is some text in a div
<p>This text is inside of a p with lots of text</p>
</div>answered Nov 21 '18 at 19:28
Scott MarcusScott Marcus
39.5k52038
So just loop over all the elements that you care about and do the replacement on those elements only.
// Get all the elements that you care about into an array
let elements = Array.prototype.slice.call(document.querySelectorAll("p, header"));
// Loop over the items in the array
elements.forEach(function(el){
// Do the replace on the element
el.textContent = el.textContent.replace(/text/g, "letters");
});<header>This is some text in a header</header>
<h1>This is some text in an h1</h1>
<div>This is some text in a div</div>
<p>This is some text in a p</p>
<div>This is some text in a div</div>
<div>This is some text in a div
<p>This text is inside of a p with lots of text</p>
</div>// Get all the elements that you care about into an array
let elements = Array.prototype.slice.call(document.querySelectorAll("p, header"));
// Loop over the items in the array
elements.forEach(function(el){
// Do the replace on the element
el.textContent = el.textContent.replace(/text/g, "letters");
});<header>This is some text in a header</header>
<h1>This is some text in an h1</h1>
<div>This is some text in a div</div>
<p>This is some text in a p</p>
<div>This is some text in a div</div>
<div>This is some text in a div
<p>This text is inside of a p with lots of text</p>
</div>// Get all the elements that you care about into an array
let elements = Array.prototype.slice.call(document.querySelectorAll("p, header"));
// Loop over the items in the array
elements.forEach(function(el){
// Do the replace on the element
el.textContent = el.textContent.replace(/text/g, "letters");
});<header>This is some text in a header</header>
<h1>This is some text in an h1</h1>
<div>This is some text in a div</div>
<p>This is some text in a p</p>
<div>This is some text in a div</div>
<div>This is some text in a div
<p>This text is inside of a p with lots of text</p>
</div>answered Nov 21 '18 at 19:28
Scott MarcusScott Marcus
39.5k52038
answered Nov 21 '18 at 19:28
Scott MarcusScott Marcus
39.5k52038
answered Nov 21 '18 at 19:28
Scott MarcusScott Marcus
39.5k52038
answered Nov 21 '18 at 19:28
Scott MarcusScott Marcus
39.5k52038
39.5k52038
add a comment |
add a comment |
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2
possible duplicate stackoverflow.com/questions/47688518/…
– William Chong
Nov 21 '18 at 19:23
1
Possible duplicate of Replace words in the body text
– Jordan S
Nov 21 '18 at 19:23