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Query to count the number of tables I have in MySQL
... Just a note about the use databasename; command. If the database is really big, the command can execute with a long wait time. In that case, login should be done with the option -A, ie: mysql -uroot -p -A, and the command will work fast.
– azurecorn
Jul 21...
JavaScript :How to set a Conditional Break Point in Chrome debugger tools
...r Tools on Breakpoints at developers.google.com (Emphasis mine):
Note: All the breakpoints you have set appear under Breakpoints in the right-hand sidebar. Clicking on the entry jumps to the highlighted line in the source file. Once you have a breakpoint set, right click on the blue tag breakpoi...
How does comparison operator works with null int?
...s, if the value of one of the nullable types is null and the other is not, all comparisons evaluate to false except for !=
So both a > b and a < b evaluate to false since a is null...
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Can someone explain the “debounce” function in Javascript
...turned function will be able to reference this due to closure.
// Each call to the returned function will share this common timer.
var timeout;
// Calling debounce returns a new anonymous function
return function() {
// reference the context and args for the setTimeout function
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Using an integer as a key in an associative array in JavaScript
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@bobince: Internally, sure. However, logically, arrays have integer "keys".
– Lightness Races in Orbit
Nov 17 '12 at 22:53
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CSS margin terror; Margin adds space outside parent element [duplicate]
...re ( seifi.org/css/… ) aswell and some good explaining. No solution is really 100% satisfying. But I guess one just have to live with it, margin must work this way or text formatting would be impossible. 99% of time it works as needed. But every now and then comes the issue when designing a layout...
Create an enum with string values
...vide a reliable and safe experience for named string values (which is partially what enums are used for).
type Options = "hello" | "world";
var foo: Options;
foo = "hello"; // Okay
foo = "asdf"; // Error!
More : https://www.typescriptlang.org/docs/handbook/advanced-types.html#string-literal-typ...
Exact time measurement for performance testing [duplicate]
... is the most exact way of seeing how long something, for example a method call, took in code?
7 Answers
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How to insert in XSLT
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The link Top Ten Java and XSLT Tips is really useful.
– LCJ
Feb 5 '16 at 16:41
<x...
Convert columns to string in Pandas
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to_json() probably does not call astype(str) as it leaves datetime64 and its subclasses as milliseconds since epoch.
– Sussch
Jul 10 '19 at 5:41
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