In Chrome, when you right-click a string on the console, you'll see "copy string as javascript literal" option. This is what I want to have now, in JavaScript.
For example, let's say I have the following text content:
console.log('hoge');
My question is, how can I get something below from the above?
"console.log('hoge');"
I want to do this because, I have a mega bytes of webpack-generated long JavaScript content, and for a reason I need to eval() the script on an other environment, so I want to copy-and-paste the JavaScript literal text to inside the "eval()". (you may suggest exchanging the data not with the literal but with json (json.stringify/parse), I know, but I just prefer the literal way for now)
So is it possible? Thanks.
After noting the advice regarding the security weakness inherent in using eval (see: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/eval)
You can achieve what you want by enclosing the entire literal code inside back-ticks and using the resulting string as the eval argument. back tick quotted strings can include line breaks so you should be able to pass your entire code block inside a single set.
Working snippet.
console.log('hoge');
console.log('another hoge');
eval(`console.log('hoge');
console.log('another hoge')`);You can easily enclose Javascript in backticks to get a template literal:
eval(`console.log('hoge')`)
But you should also escape backticks inside the Javascript code to handle situations like this:
eval(`console.log(`hoge`)`) // SyntaxError
As a solution, you can use this bash one-liner:
sed 's/`/\\`/g' | xargs -0 printf 'eval(`%s`)'
Enter.Enter again.Ctrl+D to finish input.eval() function call with escaped template literal on the output.You can assign this one-liner command to an alias for easy use:
alias js_eval_literal="sed '"'s/`/\\`/g'"' | xargs -0 printf '"'eval(`%s`)'"'"