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What's the difference between echo, print, and print_r in PHP?
...ngs are not quoted, type information is omitted, array sizes aren't given, etc.
var_dump is usually more useful than print_r when debugging, in my experience. It's particularly useful when you don't know exactly what values/types you have in your variables. Consider this test program:
$values = ar...
What is opinionated software?
...ous options easier. e.g. Visual Studio .NET for .NET, Eclipse IDE for Java etc. Unopinionated software typically takes longer to master than opinionated software.
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Java code To convert byte to Hexadecimal
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StringBuffer buffer = new StringBuffer();
Step 2: Isolate the higher order bits, convert them to hex, and append them to the buffer
Given the binary number 1111 1110, we can isolate the higher order bits by first shifting them over by 4, and then zeroing out the rest of the number. Logically ...
Enter triggers button click
...is a <input type="submit"> . The buttons appear on the page in that order. If I'm in a text field anywhere in the form and press <Enter> , the button element's click event is triggered. I assume that's because the button element sits first.
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Understanding CUDA grid dimensions, block dimensions and threads organization (simple explanation) [
...ng unit. You use blocks according to the specifications of your problem in order to distribute the work to the threads. It is not likely that you can always use blocks of 768 threads for every problem you have. Imagine you have to process a 64x64 image (4096 pixels). 4096/768 = 5.333333 blocks ?
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How to handle button clicks using the XML onClick within Fragments
... could just do this:
Activity:
Fragment someFragment;
//...onCreate etc instantiating your fragments
public void myClickMethod(View v) {
someFragment.myClickMethod(v);
}
Fragment:
public void myClickMethod(View v) {
switch(v.getId()) {
// Just like you were doing
}
} ...
How to group dataframe rows into list in pandas groupby?
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are the methods above guaranteed to preserve order? meaning that elements from the same row (but different columns, b and c in your code above) will have the same index in the resulting lists?
– Kai
May 2 '19 at 15:51
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Why is the Windows cmd.exe limited to 80 characters wide?
I love stretching my terminal on unix. What is the history or reason behind windows lame command line?
14 Answers
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“Prevent saving changes that require the table to be re-created” negative effects
...new column
Change the Allow Nulls setting for a column
Change the column order in the table
Change the column data type
Using ALTER is safer, as in case the metadata is lost while you re-create the table, your data will be lost.
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How to sort the letters in a string alphabetically in Python
...Hello World!"
>>>"".join(sorted(a))
' !!HWdellloor'
CORRECT: In order to write the sorted string without changing the case of letter. Use the code:
>>> a = "Hello World!"
>>> "".join(sorted(a,key=lambda x:x.lower()))
' !deHllloorW'
If you want to remove all punctuatio...