You can use array_chunk() to split an array of data into smaller arrays, in this case of length 2, for each row. <table> <?php foreach (array_chunk($values, 2) as $row) { ?> <tr> <?php foreach ($row as $value) { ?> <td><?php echo htmlentities($value); ?></td> <?php } ?> </tr> <?php } ?> </table> Note that if you … Read more
I generally agree with the other answers, but I will say that in my experience, a stylesheet written with xsl:for-each can be a lot easier to read, understand, and maintain than one that relies heavily xsl:apply-templates… Especially xsl:apply-templates with an implicit select (or a very generic select like select=”node()”). Why? Because it’s very easy to … Read more
Before ES2017 and async/await (see below for an option in ES2017), you can’t use .forEach() if you want to wait for a promise because promises are not blocking. Javascript and promises just don’t work that way. You can chain multiple promises and make the promise infrastructure sequence them. You can iterate manually and advance the … Read more
Sample content of test.txt Hello Stack Over Flow com Code to read from this text file using lines() and forEach() methods. import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.util.stream.Stream; public class FileLambda { public static void main(String args[]) { Path path = Paths.of(“/root/test.txt”); try (Stream<String> lines = Files.lines(path)) { lines.forEach(s -> System.out.println(s)); } … Read more
It doesn’t use an anonymous function, no. Basically the compiler converts the code into something broadly equivalent to the while loop you’ve shown here. foreach isn’t a function call – it’s built-into the language itself, just like for loops and while loops. There’s no need for it to return anything or “take” a function of … Read more
This is because you’re closing over a variable in the wrong scope. The solution here is to use a temporary in your foreach loop: foreach(MyClass myObj in myList) { MyClass tmp = myObj; // Make temporary Thread myThread = new Thread(() => this.MyMethod(tmp)); myThread.Start(); } For details, I recommend reading Eric Lippert’s post on this … Read more
Why doesn’t the enhanced for loop just accept an iterator? I want to gather a few of the potential reasons from the various answers as to why the for-each loop doesn’t simply accept an iterator. Convenience: The for-each loop was created partly for convenience for the common operation of performing an action given each element … Read more
for-each is syntactic sugar for using iterators (approach 2). You might need to use iterators if you need to modify collection in your loop. First approach will throw exception. for (String i : list) { System.out.println(i); list.remove(i); // throws exception } Iterator it=list.iterator(); while (it.hasNext()){ System.out.println(it.next()); it.remove(); // valid here }
Object does not have forEach, it belongs to Array prototype. If you want to iterate through each key-value pair in the object and take the values. You can do this: Object.keys(a).forEach(function (key){ console.log(a[key]); }); Usage note: For an object v = {“cat”:”large”, “dog”: “small”, “bird”: “tiny”};, Object.keys(v) gives you an array of the keys so … Read more
To find all the filenames use os.listdir(). Then you loop over the filenames. Like so: import os for filename in os.listdir(‘dirname’): callthecommandhere(blablahbla, filename, foo) If you prefer subprocess, use subprocess. 🙂