Finding Issues

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Content You have a gf She likes coding She takes an interest in your work She helps you debug your code

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Content When you add a string to an integer and wait for an error but javascript returns a string JS Parkour!

Content PROBLEM: JAVASCRIPT HAS ALMOST NO STANDARD LIBRARY SOLUTION: THOUSANDS OF COMMUNITY -SUPPORTED LIBRARIES OF WILDLY VARYING QUALITY PROBLEM: JAVASCRIPT HAS NO PACKAGING OR A LINKER TO TIE THESE PACKAGES TOGETHER PROBLEM: JAVASCRIPT WON'T RUN OUTSIDE THE BROWSER SOLUTION: V8 PROBLEM: JAVASCRIPT IS SINGLE -THREAD BY DESIGN SOLUTION: ASYNCHRONOUS PROGRAMMING, NODE. JS PROBLEM: CALLBACK HELL PROBLEM: PROTOTYPAL INHERITANCE IS PANTS -ON- HEAD STUPID THAT'S RIGHT, I SAID IT. PROBLEM: WEB RESOURCES NEED TO BE MINIFIED AND ZIPPED FOR PERFORMANCE PROBLEM: THE DOM IS TOO SLOW FOR VIDEO GAMES SOLUTION: CANVAS PROBLEM: JAVASCRIPT IS TOO SLOW FOR VIDEO GAMES SOLUTION: USE AN ASSEMBLY- LIKE SUBSET OF JAVASCRIPT CALLED ASM.JS PROBLEM: ASM.JS IS BASICALLY UNWRITABLE 4 HUMANS. SOLUTION: COMPILE A BETTER LANGUAGE TO JAVASCRIPT (C, EMASCRIPT 2016, COFFEESCRIPT, JSX) SOLUTION: HUNDREDS OF COMMUNITY SUPPORTED BUILD TOOLS OF WILDLY VARYING QUALITY PROBLEM: GRUNT. SOLUTION: GULP PROBLEM: GULP PROBLEM: MACHINE GENERATED OUTPUT IS MORE DIFFICULT TO DEBUG PROBLEM: ASYNC IS STILL A NIGHTMARE, HUH? PROBLEM: BALLOONING PROJECT SIZE AND COMPLEXITY PROBLEM: JAVASCRIPT STILL DOESN'T DO EVERYTHING PROBLEM: OUTPUT RUNS VERY SLOWLY ON MOBILE DEVICES SOLUTION: ELECTRON, PHONEGAP, FIREFOXOS HOW IS DIGGING GOING TO GET US OUT OF THIS HOLE? WHERE I AM FROM, THE POINT OF DIGGING IS NOT FREEDOM FROM DIGGING

JavaScript's type conversion is like that friend who's confident but wrong about everything. Empty string? That's clearly 0! "07foo"? Obviously 7! And my personal favorite: a tiny decimal like 0.0000005 somehow becomes 5, because who needs those pesky zeros anyway? The best part is how parseInt() and Number() can't even agree with each other. One sees scientific notation, the other just sees numbers to ignore. It's like watching two drunk mathematicians argue about how to split the bill. This is why JavaScript developers drink.