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How to comment lines in rails html.erb files? [duplicate]
...of each starting bracket as we usually do like this:
<%# if flash[:myErrors] %>
<%# if flash[:myErrors].any? %>
<%# if @post.id.nil? %>
<%# if @myPost!=-1 %>
<%# @post = @myPost %>
<%# else %>
<%# @post = Post.ne...
In what cases could `git pull` be harmful?
...s and when a fast-forward merge isn't possible, then Git will exit with an error. This will give you an opportunity to study the incoming commits, think about how they might affect your local commits, and decide the best course of action (merge, rebase, reset, etc.).
With Git 2.0 and newer, you ca...
Extract a regular expression match
...,perl=TRUE)
[1] "12"
Trying to substitute out non-digits will lead to an error in this case.
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Index of Currently Selected Row in DataGridView
...innang when you have selected no row, @JayRiggs' solution will throw index error two. You'd better wrapped it with a if
– Allan Ruin
Mar 11 '15 at 1:22
add a comment
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Android Json and null values
...
}
catch(Exception ex) {
LogHelper.e("model", "Error parsing value");
return null;
}
}
and then something like this:
String mFirstName = getJsonString(jsonObject, "first_name");
would give you your string value or safely set your string variable t...
How to show disable HTML select option in by default?
... You should set the value="" so if you also have required then an error will be raised to choose from the dropdown, otherwise a empty value gets passed even though nothing was selected. <option selected="true" disabled="disabled" value="">Choose Tagging</option>
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Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
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}
catch
{
return "ERROR IN QUOTE.";
}
//Make sure that the timer is started.
if (!tmrTimer.Enabled)
{
tmrTimer.Start();
}
for (int i = 0; i < ma...
Cannot lower case button text in android studio
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After adding this, i am having inflation error with arrayindexoutofboundsexception.
– M. Usman Khan
Feb 10 '16 at 16:00
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How to get WordPress post featured image URL
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The one that is at the top didn't work (without PHP errors, which I didn't want as I'm building a WordPress theme for the masses) but this one did. +1
– Calum Childs
Sep 26 '18 at 16:37
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What's the best way of scraping data from a website? [closed]
... be invaluable. Reverse engineering tasks like this are a lot of trial and error so you will want a workflow that makes this easy.
Language
PHP is basically out, it's not well suited for this task and the library/framework support is poor in this area. Python (Scrapy is a great starting point) and...