![Han Seoul-Oh on X: "Fun fact: ARM has a dedicated CPU instruction to speed up JavaScript It's called `fjcvtzs`, which, same tbh Basically the JS spec hardcoded some idiosyncratic x86 behavior converting Han Seoul-Oh on X: "Fun fact: ARM has a dedicated CPU instruction to speed up JavaScript It's called `fjcvtzs`, which, same tbh Basically the JS spec hardcoded some idiosyncratic x86 behavior converting](https://pbs.twimg.com/media/GBIlMcvb0AA1RQ3.jpg:large)
Han Seoul-Oh on X: "Fun fact: ARM has a dedicated CPU instruction to speed up JavaScript It's called `fjcvtzs`, which, same tbh Basically the JS spec hardcoded some idiosyncratic x86 behavior converting
![nystudio107 on X: "✓ JavaScript tip: Use the !! (double-not) operator to convert the truthy/falsey value to true Boolean data type. #javascript #SomethingIDidNotKnow https://t.co/B3eBMaiEdW https://t.co/njWDWdedir" / X nystudio107 on X: "✓ JavaScript tip: Use the !! (double-not) operator to convert the truthy/falsey value to true Boolean data type. #javascript #SomethingIDidNotKnow https://t.co/B3eBMaiEdW https://t.co/njWDWdedir" / X](https://pbs.twimg.com/media/Dq3X258XgAsTxPr.png)
nystudio107 on X: "✓ JavaScript tip: Use the !! (double-not) operator to convert the truthy/falsey value to true Boolean data type. #javascript #SomethingIDidNotKnow https://t.co/B3eBMaiEdW https://t.co/njWDWdedir" / X
![Samantha Ming on X: "TLDR - How the !! works in #JavaScript The first "!" coerce the value to a boolean and inverse it. The second "!" reverse it back. Hence the Samantha Ming on X: "TLDR - How the !! works in #JavaScript The first "!" coerce the value to a boolean and inverse it. The second "!" reverse it back. Hence the](https://pbs.twimg.com/media/ERy24QBUEAAAWV9.jpg:large)