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Credit for User:Meriton for developing the following code (first published here). function replaceIn(e) { if (e.nodeType == Node.TEXT_NODE) { e.nodeValue = e.nodeValue.replaceAll("a", "");...
#7: Post edited
Credit for [User:Meriton](https://software.codidact.com/users/53280) for developing the following code ([first published here](https://software.codidact.com/posts/286304/286317#answer-286317)):- ```javascript
- function replaceIn(e) {
- if (e.nodeType == Node.TEXT_NODE) {
- e.nodeValue = e.nodeValue.replaceAll("a", "");
- } else {
- for (const child of e.childNodes) {
- replaceIn(child);
- }
- }
- }
- replaceIn(document.body);
- ```
- How this recursive treewalker works?
- As a side question which I grasp as important, can there be an even simpler and more direct version without the `else`?
- Credit for [User:Meriton](https://software.codidact.com/users/53280) for developing the following code ([first published here](https://software.codidact.com/posts/286304/286317#answer-286317)).
- ```javascript
- function replaceIn(e) {
- if (e.nodeType == Node.TEXT_NODE) {
- e.nodeValue = e.nodeValue.replaceAll("a", "");
- } else {
- for (const child of e.childNodes) {
- replaceIn(child);
- }
- }
- }
- replaceIn(document.body);
- ```
- How this recursive treewalker works?
- As a side question which I grasp as important, can there be an even simpler and more direct version without the `else`?
#6: Post edited
by
Alexei
·
2022-04-29T06:09:45Z (almost 2 years ago)
added relevant tags
#5: Post edited
Treewalker with just an if, no else
- How this recursive treewalker works?
- Credit for [User:Meriton](https://software.codidact.com/users/53280) for developing the following code ([first published here](https://software.codidact.com/posts/286304/286317#answer-286317)):
- ```javascript
- function replaceIn(e) {
- if (e.nodeType == Node.TEXT_NODE) {
- e.nodeValue = e.nodeValue.replaceAll("a", "");
- } else {
- for (const child of e.childNodes) {
- replaceIn(child);
- }
- }
- }
- replaceIn(document.body);
- ```
Can this be achieved without `else`?If we just want to run on all characters in the document, why not do that in a direct command without conditioning?
- Credit for [User:Meriton](https://software.codidact.com/users/53280) for developing the following code ([first published here](https://software.codidact.com/posts/286304/286317#answer-286317)):
- ```javascript
- function replaceIn(e) {
- if (e.nodeType == Node.TEXT_NODE) {
- e.nodeValue = e.nodeValue.replaceAll("a", "");
- } else {
- for (const child of e.childNodes) {
- replaceIn(child);
- }
- }
- }
- replaceIn(document.body);
- ```
- How this recursive treewalker works?
- As a side question which I grasp as important, can there be an even simpler and more direct version without the `else`?
#3: Post edited
Treewalker without an if-else conditioning
- Treewalker without just an if, no else
- Credit for [User:Meriton](https://software.codidact.com/users/53280) for developing the following code ([first published here](https://software.codidact.com/posts/286304/286317#answer-286317)):
- ```javascript
- function replaceIn(e) {
- if (e.nodeType == Node.TEXT_NODE) {
- e.nodeValue = e.nodeValue.replaceAll("a", "");
- } else {
- for (const child of e.childNodes) {
- replaceIn(child);
- }
- }
- }
- replaceIn(document.body);
- ```
Why does an if-else pattern is needed here and can the code be rephrased without it?- If we just want to run on all characters in the document, why not do that in a direct command without conditioning?
- Credit for [User:Meriton](https://software.codidact.com/users/53280) for developing the following code ([first published here](https://software.codidact.com/posts/286304/286317#answer-286317)):
- ```javascript
- function replaceIn(e) {
- if (e.nodeType == Node.TEXT_NODE) {
- e.nodeValue = e.nodeValue.replaceAll("a", "");
- } else {
- for (const child of e.childNodes) {
- replaceIn(child);
- }
- }
- }
- replaceIn(document.body);
- ```
- Can this be achieved without `else`?
- If we just want to run on all characters in the document, why not do that in a direct command without conditioning?
#2: Post edited
- Credit for [User:Meriton](https://software.codidact.com/users/53280) for developing the following code ([first published here](https://software.codidact.com/posts/286304/286317#answer-286317)):
- ```javascript
- function replaceIn(e) {
- if (e.nodeType == Node.TEXT_NODE) {
- e.nodeValue = e.nodeValue.replaceAll("a", "");
- } else {
- for (const child of e.childNodes) {
- replaceIn(child);
- }
- }
- }
- replaceIn(document.body);
- ```
Why does an if-else pattern is needed here and can the code be rephrased without it?
- Credit for [User:Meriton](https://software.codidact.com/users/53280) for developing the following code ([first published here](https://software.codidact.com/posts/286304/286317#answer-286317)):
- ```javascript
- function replaceIn(e) {
- if (e.nodeType == Node.TEXT_NODE) {
- e.nodeValue = e.nodeValue.replaceAll("a", "");
- } else {
- for (const child of e.childNodes) {
- replaceIn(child);
- }
- }
- }
- replaceIn(document.body);
- ```
- Why does an if-else pattern is needed here and can the code be rephrased without it?
- If we just want to run on all characters in the document, why not do that in a direct command without conditioning?
#1: Initial revision
Treewalker without an if-else conditioning
Credit for [User:Meriton](https://software.codidact.com/users/53280) for developing the following code ([first published here](https://software.codidact.com/posts/286304/286317#answer-286317)):
```javascript
function replaceIn(e) {
if (e.nodeType == Node.TEXT_NODE) {
e.nodeValue = e.nodeValue.replaceAll("a", "");
} else {
for (const child of e.childNodes) {
replaceIn(child);
}
}
}
replaceIn(document.body);
```
Why does an if-else pattern is needed here and can the code be rephrased without it?