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Rails update_attributes without save?
...n when assign_attributes tries to stringify the hash keys of the enclosing array:
@user.assign_attributes([ { model: "Sierra" }, { year: "2012" }, { looks: "Sexy" } ])
assign_attributes will raise a NoMethodError exception for stringify_keys, indicating that the first argument is not a Hash. The...
Check difference in seconds between two times
... the event including the time that the event occurred is added into a list array.
4 Answers
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Store print_r result into a variable as a string or text
... a variable and assign the data to it..
for example you are printing some array like this..
print_r(myArray);
to save this, you just have to add an option , set Return to TRUE and assign it to a variable
$myVariable=print_r(myArray, TRUE);
if you need some more information, Follow this
hopi...
How can I pass a Bitmap object from one activity to another
...result in a "JAVA BINDER FAILURE" error. Try passing the bitmap as a byte array and building it for display in the next activity.
I shared my solution here:
how do you pass images (bitmaps) between android activities using bundles?
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How to implement “select all” check box in HTML?
...
Never use for in with a collection or array
– mplungjan
Apr 6 '13 at 6:59
1
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How to Find And Replace Text In A File With C#
...eadAllLines(file);
YOu can then loop through and replace the text in the array.
var writer = new StreamWriter(GetFileName(baseFolder, prefix, num));
for (int i = 0; i < arr.Length; i++)
{
string line = arr[i];
line.Replace("match", "new value");
writer.WriteLine(line);
}
this m...
check if variable is dataframe
... like import pandas.DataFrame as panda_type and then inside then check the array type using isinstance(var, panda_type)
– pacificgilly1992
Dec 31 '18 at 20:13
add a comment
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How to join NSArray elements into an NSString?
Given an NSArray of NSStrings, is there a quick way to join them together into a single NSString (with a Separator)?
3 Answ...
How to read a local text file?
...that takes in the file’s path and converts each line of text into a char array, but it’s not working.
20 Answers
...
Code Golf: Lasers
...bles.
* q is the light's current location.
* G is the game board as a 1D array.
* p is the current read location when populating G.
* w is the board's width.
main(m){
Obvious main. m is a variable storing the movement vector. (It's a parameter to main as an optimization.)
for(;(*++p=ge...