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Should I use 'has_key()' or 'in' on Python dicts?

...dable there is no has_key() method anyway, and if there is a O(1) approach then that'll be use-case specific and so up to the developer to pick the right data type for the problem. – Martijn Pieters♦ Jan 5 '19 at 19:25 ...
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CKEditor instance already exists

... Use destroy() while the instance & it's DOM is present on the page, then it works perfectly fine. share | improve this answer | follow | ...
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When is the @JsonProperty property used and what is it used for?

...te Boolean check; public Boolean isCheck() { return check; } } Then in this case JsonProperty annotation is neeeded. However if you also have a method in the class public class Check { //@JsonProperty("check") Not needed anymore private Boolean check; public Boolean getCheck...
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Unable to install Maven on Windows: “JAVA_HOME is set to an invalid directory”

...r Java installation. If you are executing Java from "E:\Sun\SDK\jdk\bin", then the JAVA_HOME variable needs to point to "E:\Sun\SDK\jdk". NB: JAVA_HOME should NOT end with "\bin"1. Make sure that you haven't put a semicolon in the JAVA_HOME variable2. NB: JAVA_HOME should be a single directory nam...
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How to change color in circular progress bar?

... android:useLevel="false" /> </shape> </rotate> 2.then make a progresss bar using the folloing snippet <ProgressBar style="?android:attr/progressBarStyleLarge" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_above="...
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Javascript reduce() on Object

... into an array with: Object.entries(), Object.keys(), Object.values(), and then be reduced as array. But you can also reduce an object without creating the intermediate array. I've created a little helper library odict for working with objects. npm install --save odict It has reduce function t...
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OS X: equivalent of Linux's wget

.../wget 2) paste the following in #!/bin/bash curl -L $1 -o $2 3) close then make it executable chmod 777 /usr/bin/wget That's it. share | improve this answer | follow ...
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AngularJS-Twig conflict with double curly braces

...ur template and import it as _self (see here): {% import _self as ng %} Then use it as follows: {{ ng.curly('myModelName') }} This outputs: {{myModelName}} ...and a follow up for those that use MtHaml alongside Twig. MtHaml enables the use of AngularJS curlies in the normal manner because...
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Node Version Manager install - nvm command not found

...you have a .nvm folder. ls -a | grep .nvm If you're missing that folder then the installation failed to run the git command. This could be due to being behind a proxy. Try running the following instead. git clone http://github.com/creationix/nvm.git .nvm ...
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Return positions of a regex match() in Javascript?

... has an index property) if you're not looking for a global match...because then statefulness doesn't matter. – Jimbo Jonny Mar 29 '16 at 22:41  |  ...