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On Duplicate Key Update same as insert
...INE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1;
Step 2: Create an index of two columns to prevent duplicate data using following SQL Query:
ALTER TABLE `user` ADD INDEX no_duplicate (`username`, `password`);
or, Create an index of two column from GUI as follows:
Step 3: Update if exi...
How to avoid scientific notation for large numbers in JavaScript?
...se that instead.
This answer should only be applied to the context of the question: displaying a large number without using scientific notation. For anything else, you should use a BigInt library, such as BigNumber, Leemon's BigInt, or BigInteger. Going forward, the new native BigInt (note: not Lee...
Table header to stay fixed at the top when user scrolls it out of view with jQuery
...Desktop & iOS), not for Chrome
position: sticky;
top: 0;
z-index: 5;
background: #fff;
}
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How do I remove the space between inline/inline-block elements?
..."0" end="23" status="ctrHour">
<s:push value="%{days[#ctrDay.index].hours[#ctrHour.index]}">
<div class="inlineBlock>
I'm an inline-block div in a matrix
(Do something here with the pushed object...)
</div>
&...
Find a pair of elements from an array whose sum equals a given number
...sum
for i=0 to arr.length - 1 do
# key is the element and value is its index.
hash(arr[i]) = i
end-for
for i=0 to arr.length - 1 do
# if K-th element exists and it's different then we found a pair
if hash(K - arr[i]) != i
print "pair i , hash(K - arr[i]) has sum K"
end-if
end-fo...
What is the maximum length of a URL in different browsers?
...h from 2010 into the maximum URL length that search engines will crawl and index. They found the limit was 2047 chars, which appears allied to the sitemap protocol spec. However, they also found the Google SERP tool wouldn't cope with URLs longer than 1855 chars.
CDNs have limits
CDNs also impose li...
How to determine if Javascript array contains an object with an attribute that equals a given value?
...whether or not "something" is in, you can just check the value of the scan index with the size of array. For this to work the index var needs to be declared before the for statement of course.
– Alex
Oct 29 '14 at 21:05
...
Get/pick an image from Android's built-in Gallery app programmatically
... null, null);
if( cursor != null ){
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
String path = cursor.getString(column_index);
cursor.close();
...
How do I capitalize first letter of first name and last name in C#?
...r))
{
var words = str.Split(' ');
for (int index = 0; index < words.Length; index++)
{
var s = words[index];
if (s.Length > 0)
{
words[index] = s[0].ToString().ToUpper() + s.Substrin...
HTML “overlay” which allows clicks to fall through to elements behind it [duplicate]
...tisfied me was to have the canvas cover everything and then to raise the Z-index of all clickable elements. You can't draw on them, but at least they are clickable...
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