Questions tagged [esprima]
Esprima is a high performance, standard-compliant JavaScript parser written in JavaScript.
esprima
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Magento 2, RequireJS: r.js cannot parse ES6 syntax
I am maintaining Magento 2 store. Since we have issues with RequireJS preformance, I decided to try optimizing following this tutorial Advanced JS bundling.
I have problem on "Run the r.js ...
- 23
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1
answer
127
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How can I know when the scope changes within an abstract syntax tree?
Can someone help me with figuring out how to know when the scope changing while traversing the ast tree? I am using the esprima parser and I know that babel does this but I want to create my own to ...
- 85
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How to transform JavaScript AST to create infinite loop guards?
I'm using Esprima, estraverse, and escodegen to transform JavaScript code to add infinite loop guards inspired by Codepen
But I have a problem in adding code after the loop.
If I have code like this:
...
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Cannot set property 'esprima' of undefined at webpackUniversalModuleDefinition
I'm receiving this error:
Uncaught TypeError: Cannot set property 'esprima' of undefined
at webpackUniversalModuleDefinition (esprima.js:11)
at esprima.js:12
When trying to load a web app:
The ...
- 7,619
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Esprima error 404 Not Found in npm install
I'm trying to install all dependencies in my react project, but when I run npm install I'm getting some errors related to esprima:
npm ERR! 404 Not Found - GET https://codeload.github.com/ariya/...
- 445
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Ignore error while generating JS AST using ESPIRMA
How to instruct esprima to continue generating AST even if there are syntax errors in the JS file?
Example:
var x = ; // syntax error
var y = 5;
x = y;
The normal esprima output (even when enabling ...
- 111
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How to use esprima to parse a javascript file, from Java?
My requirement is to parse a javascript file and obtain the AST(Abstract Syntax Tree) in json format. The esprima.parseScript() function accepts the js code and generates the AST correctly. But, how ...
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How to generate all the leaf to leaf path in an AST?
Given a JS snippet, how to generate all the leaf-to-leaf path from the AST?
Let’s say the code snippet is:
var answer = 6 * 7;
Example AST: https://esprima.org/demo/parse.html
For this code snippet, I ...
- 3,031
2
votes
1
answer
548
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why esprima works fine in online browser demo, but failed locally
When I try to parse a snippet of code with the following script, it failed (using [email protected]). However it works fine in the esprima online browser demo, shown in the screenshot below.
var esprima = ...
- 53
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How to use a global nodejs module?
I got the following error when I try to use esprima. Does anybody know how to fix the problem? Thanks.
$ npm install -g esprima
/usr/local/bin/esparse -> /usr/local/lib/node_modules/esprima/bin/...
- 13.1k
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transpiler battle: breaking out of nested function, with vs without throw
I have just finished writing "version 0" of my first (toy) transpiler. It works. It turns a string of "pseudo JavaScript" (JavaScript with an additional feature) into a string of ...
- 3,635
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How to add a custom operator to Javascript or node.js with BabelJS?
I would like to add custom operators, keywords, and syntax to Javascript.
Someone asked for help with this many years ago and got some great instructions:
How would I extend the JavaScript language ...
- 10.1k
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How to use npm module in DENO?
Deno is super cool. I saw it in the morning and want to migrate to deno now. I was trying to move my existing nodejs script to deno. Can any one help me on how to use npm modules in deno. I need ...
- 2,082
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extracting specific function calls from javascript
I want to extract function calls from javascript files.
For example:
...........
...........
...........
function moveEvent(event, dayDelta, minuteDelta, allDay){
jQuery.ajax({
data: 'id=...
- 3,031
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How to add keyword to acorn or esprima parser
I am working on a language that transpiles to javascript and has a similar syntax. However I want to include some new type of block statements. For syntax purposes they are the same as an IfStatement. ...
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