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raw vs. html_safe vs. h to unescape html
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Considering Rails 3:
html_safe actually "sets the string" as HTML Safe (it's a little more complicated than that, but it's basically it). This way, you can return HTML Safe strings from helpers or models at will.
h can only be used from within a controller or view,...
Stock ticker symbol lookup API [closed]
...like this in return:
YAHOO.Finance.SymbolSuggest.ssCallback(
{
"ResultSet": {
"Query": "ya",
"Result": [
{
"symbol": "YHOO",
"name": "Yahoo! Inc.",
"exch": "NMS",
"type": "S",
"exchDisp":...
Git - fatal: Unable to create '/path/my_project/.git/index.lock': File exists
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Try
rm -f ./.git/index.lock
In your repository directory. The error message is rather explicit as to what causes it typically, so if you have no other git processes running (which is the normal case), go ahead and delete that file....
Extracting substrings in Go
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Why do we check up to the square root of a prime number to determine if it is prime?
To test whether a number is prime or not, why do we have to test whether it is divisible only up to the square root of that number?
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Get index of array element faster than O(n)
Given I have a HUGE array, and a value from it. I want to get index of the value in array. Is there any other way, rather then call Array#index to get it? The problem comes from the need of keeping really huge array and calling Array#index enormous amount of times.
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Create numpy matrix filled with NaNs
I have the following code:
8 Answers
8
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PHP array delete by value (not key)
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Using array_search() and unset, try the following:
if (($key = array_search($del_val, $messages)) !== false) {
unset($messages[$key]);
}
array_search() returns the key of the element it finds, which can be used to remove that element from the or...
Is it possible to use Java 8 for Android development?
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java 8
Android supports all Java 7 language features and a subset of Java 8 language features that vary by platform version.
To check which features of java 8 are supported
Use Java 8 language features
We've decided to add support for Java 8 language features directly into the cu...
How to rename a file using Python
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edited Mar 28 '18 at 13:39
Marc-Antoine Giguère
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