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Insert string at specified position
...
+50
$newstr = substr_replace($oldstr, $str_to_insert, $pos, 0);
http://php.net/substr_replace
...
How does BLAS get such extreme performance?
... The simplest variants is entirely written in plain C and has less than 450 lines of code. All the other variants merely optimize the loops
for (l=0; l<MR*NR; ++l) {
AB[l] = 0;
}
for (l=0; l<kc; ++l) {
for (j=0; j<NR; ++j) {
for (i=0; i<MR; ++i) ...
What does the Reflect object do in JavaScript?
...
UPDATE 2015:
As pointed out by 7th's answer, now that ES6 (ECMAScript 2015) has been finalized, more appropriate documentation is now available:
ES6 spec, Reflection
MDN Reflect (including details and examples to all of its methods...
width:auto for fields
... The default size is what's driving the auto width.
You could try width:100% as illustrated in my example below.
Doesn't fill width:
<form action='' method='post' style='width:200px;background:khaki'>
<input style='width:auto' />
</form>
Fills width:
<form action='' met...
Where to place $PATH variable assertions in zsh?
...
simontsimont
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3
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CSS technique for a horizontal line with words in the middle
... in a nested span with a non-transparent background.
h2 {
width: 100%;
text-align: center;
border-bottom: 1px solid #000;
line-height: 0.1em;
margin: 10px 0 20px;
}
h2 span {
background:#fff;
padding:0 10px;
}
<h2><span>THIS IS A TEST</...
How do I get the width and height of a HTML5 canvas?
... and height attributes are not present in the canvas element, the default 300x150 size will be returned. To dynamically get the correct width and height use the following code:
const canvasW = canvas.getBoundingClientRect().width;
const canvasH = canvas.getBoundingClientRect().height;
Or using th...
YouTube iframe API: how do I control an iframe player that's already in the HTML?
...
+50
Fiddle Links: Source code - Preview - Small version
Update: This small function will only execute code in a single direction. If you w...
How do I format a string using a dictionary in python-3.x?
...nce Python 3.6:
>>> geopoint = {'latitude':41.123,'longitude':71.091}
>>> print(f'{geopoint["latitude"]} {geopoint["longitude"]}')
41.123 71.091
Note the outer single quotes and inner double quotes (you could also do it the other way around).
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Can code that is valid in both C and C++ produce different behavior when compiled in each language?
...nce.
Another one from this article:
#include <stdio.h>
int sz = 80;
int main(void)
{
struct sz { char c; };
int val = sizeof(sz); // sizeof(int) in C,
// sizeof(struct sz) in C++
printf("%d\n", val);
return 0;
}
...