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Parsing huge logfiles in Node.js - read in line-by-line
...ck function on end. So if batchSize is 100, size of files is 150, only 100 items would be processed. Am I wrong?
– Vanuan
Nov 2 '19 at 3:01
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How can you programmatically tell an HTML SELECT to drop down (for example, due to mouseover)?
...t;
<button id="fire" type="button" onclick="runThis()">Show dropdown items</button>
Javascript:
// <select> element displays its options on mousedown, not click.
showDropdown = function (element) {
var event;
event = document.createEvent('MouseEvents');
event.init...
advantage of tap method in ruby
...User.new.tap do |u|
u.build_profile
u.process_credit_card
u.ship_out_item
u.send_email_confirmation
u.blahblahyougetmypoint
end
Using the above makes it easy to quickly see that all those methods are grouped together in that they all refer to the same object (the user in this example). T...
How to filter multiple values (OR operation) in angularJS
...p.filter('filterMultiple',['$filter',function ($filter) {
return function (items, keyObj) {
var filterObj = {
data:items,
filteredData:[],
applyFilter : function(obj,key){
var fData = [];
if (this.filteredData.length == 0)
this.filt...
how to append a list object to another
...
If you want to append copies of items in B, you can do:
a.insert(a.end(), b.begin(), b.end());
If you want to move items of B to the end of A (emptying B at the same time), you can do:
a.splice(a.end(), b);
In your situation splicing would be better, ...
String formatting: % vs. .format vs. string literal
... to do
"hi there %s" % (name,) # supply the single argument as a single-item tuple
which is just ugly. .format doesn't have those issues. Also in the second example you gave, the .format example is much cleaner looking.
Why would you not use it?
not knowing about it (me before reading this)...
Making a triangle shape using xml definitions?
...st xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<rotate
android:fromDegrees="45"
android:toDegrees="45"
android:pivotX="-40%"
android:pivotY="87%" >
<shape
android:shape="...
Confused about __str__ on list in Python [duplicate]
..., but the implementation of list.__str__() calls repr() for the individual items.
So you should also overwrite __repr__(). A simple
__repr__ = __str__
at the end of the class body will do the trick.
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Is there a builtin confirmation dialog in Windows Forms?
...ke this.
var confirmResult = MessageBox.Show("Are you sure to delete this item ??",
"Confirm Delete!!",
MessageBoxButtons.YesNo);
if (confirmResult == DialogResult.Yes)
{
// If 'Yes', do something here.
}
else
{
// If...
Private virtual method in C++
...the added control is useful.
Why make the virtual function private? The best reason is that we've already provided a public facing method.
Why not simply make it protected so that I can use the method for other interesting things? I suppose it will always depend on your design and how you believ...