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JavaScript

Posted by Victor Ibasco
Victor Ibasco
11,035 Points

JavaScript - Parenthesis leading to no need to 'escape' quotes

Hi ! The following is a snippet of code from an exercise in the JavaScript Loops, Objects and Arrays section.

I have singled out the code that is within the for loop of which is under great scrutiny !! Hahahaha, i'm simply wondering if anyone could explain or better yet point to a resource explaining the lack of escaping the inner quotes?

From my understanding this -- let Jim = " He say\'s 'hello' "; -- is perfectly acceptable.

var html = ' '; var red; var green; var blue; var rgbColor;

for (var i = 0; i < 30; i++) { red = Math.floor(Math.random() * 256 ); green = Math.floor(Math.random() * 256 ); blue = Math.floor(Math.random() * 256 );

rgbColor = 'rgb(' + red + ',' + green + ',' + blue + ')';

html = '<div style="background-color:' + rgbColor + '"></div>'; document.write(html); }

1 Answer

Steven Parker
Steven Parker
243,215 Points
Steven Parker
Steven Parker
243,215 Points

Escaping is only needed when the inner quotes are the same kind as the outer ones. Since you have three kinds to choose from, it's often possible to avoid needing to do this.

Any quotes of a different kind within the string are treated as ordinary characters.