jscodeshift-collections

!Build and Deploy

Some more Collections for jscodeshift for easy and terse api for writing Codemods

Install

``
npm install jscodeshift-collections
`

List of collections

- Functiondeclaration
- CallExpression
- Importdeclaration

Usage

`js
const jscsCollections = require('jscodeshift-collections');

module.exports = function(fileInfo, api) {
const j = api.jscodeshift;

jscsCollections.registerCollections(j);

return j(fileInfo.source)
.findFunctionDeclarations('foo')
.renameTo('bar')
.toSource();
}
`

Example

Say for example, if you want to rename a function declaration foo to bar

$3


`js
j.findFunctionDeclarations('foo')
.renameTo('bar')
`

$3

`js
function foo() {
}
`




$3

`js
function bar() {
}
`

List of Collections:

$3

`js
// Find all function declarations
j.findFunctionDeclarations()

// Find all function declarations with name=foo and rename them to bar
j.findFunctionDeclarations('foo')
.renameTo('xyz');

// Find and remove params
j.findFunctionDeclarations('bar')
.removeParam('a');

// Find and add params
j.findFunctionDeclarations('bar')
.addParam('d');
`

$3

`js
// Find all call expressions
j.findCallExpressions();

// Find all member expressions
j.findCallExpressions('foo.bar');


// Find all nested member expressions
j.findCallExpressions('foo.bar.baz');

// Find and rename call expressions
j.findCallExpressions('foo')
.renameTo('xyz');

// Find and rename member expressions
j.findCallExpressions('foo')
.renameTo('foo.bar');

// Find and remove params
j.findCallExpressions('bar')
.removeParam('a');

// Find and add params
j.findCallExpressions('bar')
.addParam('d');
`

$3

`js
// Find all import declarations
j.findImportDeclarations();

// Find and rename
j.findImportDeclarations('a')
.renameTo('xyz');

// Find and remove specifiers
j.findImportDeclarations('a')
.removeSpecifier('a');

// Find and add specifiers
j.findImportDeclarations('a')
.addSpecifier('c');
``