Neurotic Pumpkin Murderer

    eselement

    0.2.1 • Public • Published

    eselement

    npm version Build Status Coverage Status Dependency Status License

    DOM-like wrapper around the Javascript AST

    Install

    $ npm install eselement --save

    Example

    // amd2cjs.js
    // convert AMD modules to CommonJS.
    var fs = require("fs");
     
    var eselement = require("eselement");
     
    var content = fs.readFileSync(process.argv[2])
      , program = eselement.createElement(content);
     
    var define = program.querySelector("CallExpression[callee.name='define']");
     
    if (define) {
      var arr = define.arguments[0]
          , fn = define.arguments[1];
     
      var libs = arr.elements.map(function (e) { return e.value })
        , names = fn.params.map(function (p) { return p.name; })
        , body = fn.body.body;
     
      define.parentElement.removeChild(define);
     
      libs.forEach(function (lib, i) {
        var el = names[i] ? eselement.createElement("var " + names[i] + " = require('" + lib + "')")
                            : eselement.createElement("require('" + lib + "')");
        program.appendChild("body", el);
      });
     
      program.appendChild("body", body);
     
      console.log(program.outerCode());
    }
    $ cat amd_module.js
    define(["crypto"], function (crypto) {
      var ciphers = crypto.getCiphers();
      console.log(ciphers);
    });
     
    $ node amd2cjs.js amd_module.js
    var crypto = require('crypto');
    var ciphers = crypto.getCiphers();
    console.log(ciphers);

    API

    createElement(string || object)

    Creates and element from either Javascript code or Mozilla Parser AST.

    Element

    Attributes

    All attributes from the AST are copied onto the Element, for example an element of type Program will have an attribute body.

    Element.parentElement

    A reference to the Elements parent, if it has no parent it's null.

    Element.parentAttribute

    A string denoting the attribute on the parent in which this element is in.

    Methods

    Element.childElements()

    Get all children of an element.

    Element.firstChild()

    Get the first child of an element.

    Element.lastChild()

    Get the last child of an element.

    Element.querySelectorAll(selector)

    Select elements using esquery.

    Element.querySelector(selector)

    Select the first matching element using esquery.

    Element.setAttribute(attribute, value)

    Sets the attribute attribute to value. Does checking to see if value is of the correct type for attribute.

    Element.appendChild(attribute, child)

    Append child to element attribute attribute.

    Element.removeChild(child)

    Remove child from element.

    Element.replaceChild(newChild, oldChild)

    Replace oldChild with newChild in element.

    Element.cloneElement()

    Return a clone of element.

    Element.outerAST()

    Return the AST for element.

    Element.outerCode()

    Return the javascript code for element.

    Install

    npm i eselement

    DownloadsWeekly Downloads

    1

    Version

    0.2.1

    License

    MIT

    Last publish

    Collaborators

    • olahol