# Latest

**URL:** https://forum.kirupa.com/latest.md?page=100

[Latest](https://forum.kirupa.com/latest.md) · [Categories](https://forum.kirupa.com/categories.md)

**Page:** 101

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## [JS Tip of the Day: Symbol.species](https://forum.kirupa.com/t/js-tip-of-the-day-symbol-species/643121)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [April 15, 2020, 1:33pm UTC](https://forum.kirupa.com/t/js-tip-of-the-day-symbol-species/643121 "2020-04-15T13:33:40Z")

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## [JS Tip of the Day: Stylish Logs](https://forum.kirupa.com/t/js-tip-of-the-day-stylish-logs/643122)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [April 14, 2020, 11:12am UTC](https://forum.kirupa.com/t/js-tip-of-the-day-stylish-logs/643122 "2020-04-14T11:12:58Z")

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## [Has it been 21 years already?](https://forum.kirupa.com/t/has-it-been-21-years-already/641849)

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**Author:** [@kirupa](https://forum.kirupa.com/u/kirupa)\
**Replies:** 7\
**Last updated:** [April 13, 2020, 10:24pm UTC](https://forum.kirupa.com/t/has-it-been-21-years-already/641849 "2020-04-13T22:24:01Z")

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Time does seem to fly when you are having fun :stuck\_out\_tongue:

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## [JS Tip of the Day: The Deal With Prototypes](https://forum.kirupa.com/t/js-tip-of-the-day-the-deal-with-prototypes/643123)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [April 13, 2020, 12:54pm UTC](https://forum.kirupa.com/t/js-tip-of-the-day-the-deal-with-prototypes/643123 "2020-04-13T12:54:38Z")

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## [JS Tip of the Day: Setting HTML Element Styles](https://forum.kirupa.com/t/js-tip-of-the-day-setting-html-element-styles/643124)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [April 12, 2020, 12:16pm UTC](https://forum.kirupa.com/t/js-tip-of-the-day-setting-html-element-styles/643124 "2020-04-12T12:16:31Z")

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Setting HTML Element Styles Level: Beginner In JavaScript, you can set css styles for an element using its style property. This mirrors the style attribute in HTML but with a couple of important differences. First, t…

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## [Putting all of the site’s content on Github](https://forum.kirupa.com/t/putting-all-of-the-site-s-content-on-github/642405)

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**Author:** [@kirupa](https://forum.kirupa.com/u/kirupa)\
**Replies:** 5\
**Last updated:** [April 11, 2020, 8:16pm UTC](https://forum.kirupa.com/t/putting-all-of-the-site-s-content-on-github/642405 "2020-04-11T20:16:25Z")

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Maybe it is the quarantining, but I have been fiddling with some random ideas in-between meetings and watching my daughter nap. One idea that I keep coming back to is having all of this site’s content up on github and t…

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## [JS Tip of the Day: Detect Errors Early With Linting](https://forum.kirupa.com/t/js-tip-of-the-day-detect-errors-early-with-linting/643125)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [April 11, 2020, 11:23am UTC](https://forum.kirupa.com/t/js-tip-of-the-day-detect-errors-early-with-linting/643125 "2020-04-11T11:23:51Z")

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## [JS Tip of the Day: Interacting With Generators](https://forum.kirupa.com/t/js-tip-of-the-day-interacting-with-generators/643126)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [April 10, 2020, 12:28pm UTC](https://forum.kirupa.com/t/js-tip-of-the-day-interacting-with-generators/643126 "2020-04-10T12:28:28Z")

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## [JS Tip of the Day: Using Destructuring to Swap Values](https://forum.kirupa.com/t/js-tip-of-the-day-using-destructuring-to-swap-values/643127)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [April 9, 2020, 1:06pm UTC](https://forum.kirupa.com/t/js-tip-of-the-day-using-destructuring-to-swap-values/643127 "2020-04-09T13:06:50Z")

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## [JS Tip of the Day: Easily Toggle HTML Classes](https://forum.kirupa.com/t/js-tip-of-the-day-easily-toggle-html-classes/643128)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [April 8, 2020, 12:19pm UTC](https://forum.kirupa.com/t/js-tip-of-the-day-easily-toggle-html-classes/643128 "2020-04-08T12:19:19Z")

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## [Strings](https://forum.kirupa.com/t/strings/642372)

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**Author:** [@clauruvi](https://forum.kirupa.com/u/clauruvi)\
**Replies:** 1\
**Last updated:** [April 8, 2020, 6:45am UTC](https://forum.kirupa.com/t/strings/642372 "2020-04-08T06:45:49Z")

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Hi Kirupa, Well I have a few questions of STRINGS. Can you help me to understand more about : charAt() indexOf() toUpperCase() toLowerCase() slice() parseInt() I saw you video tree times, but I don´t complete un…

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## [TypeError: super class is not an object](https://forum.kirupa.com/t/typeerror-super-class-is-not-an-object/642341)

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**Author:** [@17BIT0216](https://forum.kirupa.com/u/17BIT0216)\
**Replies:** 2\
**Last updated:** [April 4, 2020, 4:15am UTC](https://forum.kirupa.com/t/typeerror-super-class-is-not-an-object/642341 "2020-04-04T04:15:43Z")

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× TypeError: The superclass is not an object. Why this error appears? in my React App

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## [JS Tip of the Day: The Iterator Protocol](https://forum.kirupa.com/t/js-tip-of-the-day-the-iterator-protocol/643129)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [April 7, 2020, 1:12pm UTC](https://forum.kirupa.com/t/js-tip-of-the-day-the-iterator-protocol/643129 "2020-04-07T13:12:49Z")

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## [JS Tip of the Day: What Uses enumerable?](https://forum.kirupa.com/t/js-tip-of-the-day-what-uses-enumerable/643130)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [April 6, 2020, 3:09pm UTC](https://forum.kirupa.com/t/js-tip-of-the-day-what-uses-enumerable/643130 "2020-04-06T15:09:17Z")

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## [How to add numbering/numbers to book content/child pages in drupal 8](https://forum.kirupa.com/t/how-to-add-numbering-numbers-to-book-content-child-pages-in-drupal-8/642353)

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**Author:** [@Raj\_K](https://forum.kirupa.com/u/Raj_K)\
**Replies:** 0\
**Last updated:** [April 6, 2020, 6:07am UTC](https://forum.kirupa.com/t/how-to-add-numbering-numbers-to-book-content-child-pages-in-drupal-8/642353 "2020-04-06T06:07:14Z")

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How to add numbering/numbers to book content/child pages for books in Drupal 8. For example see the below image: And I want to add numbering to below screenshot (book view) as like above. Thanks in advance for answ…

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## [Random Numbers Frequency Visualizer](https://forum.kirupa.com/t/random-numbers-frequency-visualizer/642351)

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**Author:** [@kirupa](https://forum.kirupa.com/u/kirupa)\
**Replies:** 0\
**Last updated:** [April 6, 2020, 5:48am UTC](https://forum.kirupa.com/t/random-numbers-frequency-visualizer/642351 "2020-04-06T05:48:33Z")

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I was spending some time revising some old articles, and I decided to build this little tool: Random Number Frequency Visualizer It allows you to visualize the random numbers that get generated between 1 and 5. Why is t…

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## [JS Tip of the Day: Constructors Don’t Need Parens](https://forum.kirupa.com/t/js-tip-of-the-day-constructors-don-t-need-parens/643131)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [April 5, 2020, 12:36pm UTC](https://forum.kirupa.com/t/js-tip-of-the-day-constructors-don-t-need-parens/643131 "2020-04-05T12:36:36Z")

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## [JS Tip of the Day: Live DOM Lists](https://forum.kirupa.com/t/js-tip-of-the-day-live-dom-lists/643132)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [April 4, 2020, 2:20pm UTC](https://forum.kirupa.com/t/js-tip-of-the-day-live-dom-lists/643132 "2020-04-04T14:20:58Z")

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## [JS Tip of the Day: Define vs. Assign](https://forum.kirupa.com/t/js-tip-of-the-day-define-vs-assign/643133)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [April 3, 2020, 5:12pm UTC](https://forum.kirupa.com/t/js-tip-of-the-day-define-vs-assign/643133 "2020-04-03T17:12:18Z")

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## [JS Tip of the Day: Default Parameters with Destructuring](https://forum.kirupa.com/t/js-tip-of-the-day-default-parameters-with-destructuring/643134)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [April 2, 2020, 12:37pm UTC](https://forum.kirupa.com/t/js-tip-of-the-day-default-parameters-with-destructuring/643134 "2020-04-02T12:37:42Z")

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## [When Primitives Behave Like Objects](https://forum.kirupa.com/t/when-primitives-behave-like-objects/633679)

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**Author:** [@kirupa](https://forum.kirupa.com/u/kirupa)\
**Replies:** 1\
**Last updated:** [April 2, 2020, 4:03am UTC](https://forum.kirupa.com/t/when-primitives-behave-like-objects/633679 "2020-04-02T04:03:42Z")

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This is a companion discussion topic for the original entry at http://www.kirupa.com/html5//when\_primitives\_behave\_like\_objects.htm

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## [Making of a Murderer](https://forum.kirupa.com/t/making-of-a-murderer/641864)

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**Author:** [@kirupa](https://forum.kirupa.com/u/kirupa)\
**Replies:** 10\
**Last updated:** [April 2, 2020, 3:27am UTC](https://forum.kirupa.com/t/making-of-a-murderer/641864 "2020-04-02T03:27:46Z")

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Has anybody else here watched this series on Netflix? We just finished watching the two seasons today, and this has to be one of the best documentaries I have seen. It definitely had some moments where I was jumping betw…

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## [JS Tip of the Day: Chaining](https://forum.kirupa.com/t/js-tip-of-the-day-chaining/643135)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [April 1, 2020, 12:55pm UTC](https://forum.kirupa.com/t/js-tip-of-the-day-chaining/643135 "2020-04-01T12:55:50Z")

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## [using\_redux\_with\_react](https://forum.kirupa.com/t/using-redux-with-react/642274)

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**Author:** [@cmrts](https://forum.kirupa.com/u/cmrts)\
**Replies:** 2\
**Last updated:** [April 1, 2020, 12:54pm UTC](https://forum.kirupa.com/t/using-redux-with-react/642274 "2020-04-01T12:54:00Z")

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Hello. I am very new to react so apologies if this is trivial. I have been through the online tutorial in this site, and also did so from the amazon book, and I am stuck in the “using redux in react” tutorial in https:…

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## [Buying PC](https://forum.kirupa.com/t/buying-pc/637468)

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**Author:** [@tbo](https://forum.kirupa.com/u/tbo)\
**Replies:** 16\
**Last updated:** [April 1, 2020, 10:21am UTC](https://forum.kirupa.com/t/buying-pc/637468 "2020-04-01T10:21:53Z")

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Hi there For those of you using windows, I was wondering where you buy your desktop computers capable of modern Adobe software, hobby video editing, 3d rendering etc I’m thinking I’m probably going to end up building o…

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## [Ensuring our Canvas Visuals Look Good on Retina/High-DPI Screens](https://forum.kirupa.com/t/ensuring-our-canvas-visuals-look-good-on-retina-high-dpi-screens/641514)

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**Author:** [@kirupa](https://forum.kirupa.com/u/kirupa)\
**Replies:** 4\
**Last updated:** [April 1, 2020, 5:58am UTC](https://forum.kirupa.com/t/ensuring-our-canvas-visuals-look-good-on-retina-high-dpi-screens/641514 "2020-04-01T05:58:47Z")

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This is a companion discussion topic for the original entry at https://www.kirupa.com/canvas/canvas\_high\_dpi\_retina.htm

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## [Mouseover event over multiple elements flickers](https://forum.kirupa.com/t/mouseover-event-over-multiple-elements-flickers/642275)

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**Author:** [@TheOne\_TheMany](https://forum.kirupa.com/u/TheOne_TheMany)\
**Replies:** 4\
**Last updated:** [April 1, 2020, 3:44am UTC](https://forum.kirupa.com/t/mouseover-event-over-multiple-elements-flickers/642275 "2020-04-01T03:44:28Z")

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I’m stuck creating code that’s lean and want to use only JavaScript for now. http://jsfiddle.net/TheOne\_TheMany/30zdkrys The problem I’m having is the mouseover state, when it goes over the \<li\> it works, but flickers …

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## [JS Tip of the Day: Finding Elements in the DOM](https://forum.kirupa.com/t/js-tip-of-the-day-finding-elements-in-the-dom/643136)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 2\
**Last updated:** [March 31, 2020, 6:56pm UTC](https://forum.kirupa.com/t/js-tip-of-the-day-finding-elements-in-the-dom/643136 "2020-03-31T18:56:43Z")

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## [JSTotD: Can query methods be called from elements?](https://forum.kirupa.com/t/jstotd-can-query-methods-be-called-from-elements/642273)

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**Author:** [@REB\_412](https://forum.kirupa.com/u/REB_412)\
**Replies:** 0\
**Last updated:** [March 31, 2020, 6:36pm UTC](https://forum.kirupa.com/t/jstotd-can-query-methods-be-called-from-elements/642273 "2020-03-31T18:36:50Z")

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Re: Finding Elements in the DOM Can querySelector and querySelectorAll be applied to specific elements to find specific nodes that are children or must they always reference the “document”?

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## [JS Tip of the Day: Property Descriptors](https://forum.kirupa.com/t/js-tip-of-the-day-property-descriptors/643137)

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**Author:** [@senocular](https://forum.kirupa.com/u/senocular)\
**Replies:** 0\
**Last updated:** [March 30, 2020, 12:12pm UTC](https://forum.kirupa.com/t/js-tip-of-the-day-property-descriptors/643137 "2020-03-30T12:12:27Z")

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