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Use of alloc init instead of new
...a bunch of reasons here: http://macresearch.org/difference-between-alloc-init-and-new
Some selected ones are:
new doesn't support custom initializers (like initWithString)
alloc-init is more explicit than new
General opinion seems to be that you should use whatever you're comfortable with.
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Remove padding or margins from Google Charts
...artArea.width to 100% and chartArea.height to 80% and moving the legend.position to bottom:
// Set chart options
var options = {'title': 'How Much Pizza I Ate Last Night',
'width': 350,
'height': 400,
'chartArea': {'width': '100%', 'height': '80%'},
...
prototype based vs. class based inheritance
...ript, every object is at the same time an instance and a class. To do inheritance, you can use any object instance as a prototype.
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Return empty cell from formula in Excel
I need to return an empty cell from an Excel formula, but it appears that Excel treats an empty string or a reference to an empty cell differently than a true empty cell. So essentially I need something like
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Slide right to left?
...follow
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edited Oct 19 '15 at 14:55
mark.monteiro
1,66122 gold badges2222 silver badges2828 bronze badges
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Overriding a Rails default_scope
If I have an ActiveRecord::Base model with a default-scope:
9 Answers
9
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How to find a deleted file in the project commit history?
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If you do not know the exact path you may use
git log --all --full-history -- "**/thefile.*"
If you know the path the file was at, you can do this:
git log --all --full-history -- <path-to-file>
This should show a list of commits in all branches which touched t...
jQuery disable/enable submit button
...oved away from the input (e.g. someone clicks off the input or tabs out of it). Try using keyup instead:
$(document).ready(function() {
$(':input[type="submit"]').prop('disabled', true);
$('input[type="text"]').keyup(function() {
if($(this).val() != '') {
$(':input[typ...
What happens if you call erase() on a map element while iterating from begin to end?
...g code I loop through a map and test if an element needs to be erased. Is it safe to erase the element and keep iterating or do I need to collect the keys in another container and do a second loop to call the erase()?
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What are the file limits in Git (number and size)?
Does anyone know what are the Git limits for number of files and size of files?
10 Answers
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