How to remove elements from a generic list while iterating over it?

Iterate your list in reverse with a for loop: for (int i = safePendingList.Count – 1; i >= 0; i–) { // some code // safePendingList.RemoveAt(i); } Example: var list = new List<int>(Enumerable.Range(1, 10)); for (int i = list.Count – 1; i >= 0; i–) { if (list[i] > 5) list.RemoveAt(i); } list.ForEach(i => Console.WriteLine(i)); … Read more

How to iterate over a JavaScript object?

For iterating on keys of Arrays, Strings, or Objects, use for .. in : for (let key in yourobject) { console.log(key, yourobject[key]); } With ES6, if you need both keys and values simultaneously, do for (let [key, value] of Object.entries(yourobject)) { console.log(key, value); } To avoid logging inherited properties, check with hasOwnProperty : for (let … Read more

How do I iterate over a JSON structure? [duplicate]

var arr = [ {“id”:”10″, “class”: “child-of-9”}, {“id”:”11″, “class”: “child-of-10”}]; for (var i = 0; i < arr.length; i++){ document.write(“<br><br>array index: ” + i); var obj = arr[i]; for (var key in obj){ var value = obj[key]; document.write(“<br> – ” + key + “: ” + value); } } note: the for-in method is cool … Read more

How to iterate over a list in chunks

def chunker(seq, size): return (seq[pos:pos + size] for pos in range(0, len(seq), size)) Works with any sequence: text = “I am a very, very helpful text” for group in chunker(text, 7): print(repr(group),) # ‘I am a ‘ ‘very, v’ ‘ery hel’ ‘pful te’ ‘xt’ print(‘|’.join(chunker(text, 10))) # I am a ver|y, very he|lpful text animals … Read more

Calling remove in foreach loop in Java [duplicate]

To safely remove from a collection while iterating over it you should use an Iterator. For example: List<String> names = …. Iterator<String> i = names.iterator(); while (i.hasNext()) { String s = i.next(); // must be called before you can call i.remove() // Do something i.remove(); } From the Java Documentation : The iterators returned by … Read more

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