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Creating an iframe with given HTML dynamically
I'm trying to create an iframe from JavaScript and fill it with arbitrary HTML, like so:
7 Answers
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How to concatenate strings of a string field in a PostgreSQL 'group by' query?
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FROM mytable
GROUP BY company_id;
Or indeed:
SELECT string_agg(actor_name, ', ' ORDER BY first_appearance)
PostgreSQL 8.4 or later:
PostgreSQL 8.4 (in 2009) introduced the aggregate function array_agg(expression) which concatenates the values into an array. Then array_to_string() can be used ...
Hibernate - Batch update returned unexpected row count from update: 0 actual row count: 0 expected:
...since hibernate flush the session at the end of the transaction. The below mentioned hibernate error looks like a general error. It doesn't even mentioned which Bean causes the issue. Anyone familiar with this hibernate error?
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PostgreSQL Autoincrement
...switching from MySQL to PostgreSQL and was wondering how I can do autoincrement values. I saw in the PostgreSQL docs a datatype "serial", but I get syntax errors when using it (in v8.0).
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Specify sudo password for Ansible
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You can pass variable on the command line via --extra-vars "name=value". Sudo password variable is ansible_sudo_pass. So your command would look like:
ansible-playbook playbook.yml -i inventory.ini --user=username \
--extra-vars "ansible_sudo_pass=yourPass...
How to for each the hashmap? [duplicate]
...a bit late for that one, but I'll share what I did too, in case it helps someone else :
HashMap<String, HashMap> selects = new HashMap<String, HashMap>();
for(Map.Entry<String, HashMap> entry : selects.entrySet()) {
String key = entry.getKey();
HashMap value = entry.getVa...
How do I use reflection to invoke a private method?
There are a group of private methods in my class, and I need to call one dynamically based on an input value. Both the invoking code and the target methods are in the same instance. The code looks like this:
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Apply function to all elements of collection through LINQ [duplicate]
...started off with LINQ and its amazing. I was wondering if LINQ would allow me to apply a function - any function - to all the elements of a collection, without using foreach. Something like python lambda functions.
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NameError: name 'self' is not defined
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Default argument values are evaluated at function define-time, but self is an argument only available at function call time. Thus arguments in the argument list cannot refer each other.
It's a common pattern to default an argument to No...
What's the most concise way to read query parameters in AngularJS?
I'd like to read the values of URL query parameters using AngularJS. I'm accessing the HTML with the following URL:
10 Ans...