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Why are global variables evil? [closed]
I'm trying to find out why the use of global is considered to be bad practice in python (and in programming in general). Can somebody explain? Links with more info would also be appreciated.
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AngularJs event to call after content is loaded
...ore angular has finished processing the dom. You can test this by adding a id or class as angular variable and try to find it in $viewContentLoaded with jQuery. You will not find it.
– Thomas Kekeisen
Jun 11 '15 at 6:51
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Calling a function every 60 seconds
...ed to execute further
return true; // or false, change the IIFE inside condition accordingly.
}
}
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Setting multiple attributes for an element at once with JavaScript
...ement. See comments for additional details.
Keep in mind that height and width attributes are defined in pixels, not percents. You'll have to use CSS to make it fluid.
var elem = document.createElement('img')
Object.assign(elem, {
className: 'my-image-class',
src: 'https://dummyimage.co...
Should I use scipy.pi, numpy.pi, or math.pi?
...atter, they are all the same value.
The only reason all three modules provide a pi value is so if you are using just one of the three modules, you can conveniently have access to pi without having to import another module. They're not providing different values for pi.
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powershell 2.0 try catch how to access the exception
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Emacs: print key binding for a command or list all key bindings
...r functions like ignore or self-insert-command.
– David Ongaro
Nov 3 '18 at 20:17
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Getting one value from a tuple
...answered Jun 28 '10 at 20:56
David ZDavid Z
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Instance v state variables in react.js
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In addition to what @ssorallen said, you should also remember to handle the component unmounting before your handleLeave is called.
React.createClass({
handleEnter: function () {
// Open a new one after a delay
this._timeout = setTime...
Ruby sleep or delay less than a second?
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It's a good idea to extract the 1.0/24.0 value to a variable for the DRY principle. Other pieces of code will need that value too, so you should keep it in a central location to avoid duplication. If performance is a side-effect, then gr...