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How to use the pathEq function from ramda

Find comprehensive JavaScript ramda.pathEq code examples handpicked from public code repositorys.

ramda.pathEq is a function in the Ramda library that checks if a property at a given path on an object is equal to a specified value.

removeChannelForwards.js

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if (excludeLinks === false || excludeLinks === '*') {
	module.exports = passThru();
	return;
}


const isChannelForward = R.pathEq(
	[ 'message', 'forward_from_chat', 'type' ],
	'channel',
);
const fromAdmin = R.pathEq([ 'from', 'status' ], 'admin');

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+ 3 other calls in file

sql.service.js

GitHub: DFEAGILEDEVOPS/MTC

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if (!param.type) {
  throw new Error('parameter type invalid')
}
const options = {}
if (R.pathEq(['type', 'name'], 'Decimal', param) ||
  R.pathEq(['type', 'name'], 'Numeric', param)) {
  options.precision = param.precision || 28
  options.scale = param.scale || 5
}
const opts = param.options ? param.options : options

+ 3 other calls in file

How does ramda.pathEq work?

ramda.pathEq is a higher-order function that takes three arguments: path, value, and object. It returns true if the value at the specified path on the object is equal to the value, and false otherwise.

Here is how ramda.pathEq works in more detail:

It takes the path argument, which should be an array of property names or indices that specify the path to the property to check.
It takes the value argument, which is the value to compare against the property value.
It takes the object argument, which is the object to check the property value against.
It retrieves the value at the specified path on the object.
It checks if the retrieved value is equal to the value using the === operator.
It returns true if the retrieved value is equal to the value, and false otherwise.

ramda.pathEq can be useful in functional programming when working with nested data structures and filtering or searching for objects that meet a certain criteria.

cmr.js

GitHub: NASA-IMPACT/nncpp-cumulus-deploy

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 *    to change the parent collection of a previously published granule; `false`
 *    otherwise
 */
function isParentChangeError(error) {
  return (
    R.pathEq(['response', 'status'], 422, error) &&
    R.pathOr([], ['response', 'data', 'errors'], error)
      .some(R.includes("parent collection cannot be changed"))
  );
}

path.js

GitHub: htunkhainglynn/react-learning-repo

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    }
}


console.log(R.path(['location', 'address', 'city'])(person));  // => present ? value : undefined


let isYangonThar = R.pathEq(['location', 'address', 'city'], 'Yangon');
console.log("is yangon thar", isYangonThar(person));

+ 129 other calls in file

Ai Example

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const R = require("ramda");

const users = [
  { id: 1, name: "Alice", age: 30 },
  { id: 2, name: "Bob", age: 25 },
  { id: 3, name: "Charlie", age: 35 },
];

const hasAge30 = R.pathEq(["age"], 30);

console.log(hasAge30(users[0])); // true
console.log(hasAge30(users[1])); // false

In this example, we define an array of users, where each user is an object with an id, name, and age property. We then define a function called hasAge30 that uses R.pathEq to check if a given user has an age property with a value of 30. We test this function by calling it with two different users from the users array and logging the result to the console. The first call to hasAge30 with users[0] returns true, since the age property of this user is equal to 30. The second call to hasAge30 with users[1] returns false, since the age property of this user is 25, not 30.

ramda-demo.js

GitHub: dqmmpb/define-demos

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var user1 = {address: {zipCode: 90210}};
var user2 = {address: {zipCode: 55555}};
var user3 = {address: {zipCode: 31000}};
var user4 = {address: {zipCode: 11000}};
var users = [user1, user2, user3, user4];
var isFamous = R.pathEq(['address', 'zipCode'], 55555);
log(R.filter(isFamous)(users));


log(R.assocPath(['a', 'b', 'c'], 42)({a: {b: {c: 0}}}));
log(R.assocPath(['a', 'b', 'c'], 42)({a: 5}));

+ 9 other calls in file

cyclejs-audio-driver.js

GitHub: jemmyw/cyclejs-audio-driver

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 *
 *      var user1 = { address: { zipCode: 90210 } };
 *      var user2 = { address: { zipCode: 55555 } };
 *      var user3 = { name: 'Bob' };
 *      var users = [ user1, user2, user3 ];
 *      var isFamous = R.pathEq(['address', 'zipCode'], 90210);
 *      R.filter(isFamous, users); //=> [ user1 ]
 */
var pathEq = _curry3(function pathEq(_path, val, obj) {
    return equals(path(_path, obj), val);

+ 17 other calls in file

build

GitHub: desenmeng/ramda

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  };
});


//  isModuleExportsExpr :: {*} -> Boolean
var isModuleExportsExpr = R.allPass([
  R.pathEq(['type'], 'ExpressionStatement'),
  R.pathEq(['expression', 'type'], 'AssignmentExpression'),
  R.pathEq(['expression', 'operator'], '='),
  R.pathEq(['expression', 'left', 'type'], 'MemberExpression'),
  R.pathEq(['expression', 'left', 'object', 'type'], 'Identifier'),

+ 12 other calls in file

bundle.js

GitHub: Gaoey/canvas-vertice-google-detected-text

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*
*      const user1 = { address: { zipCode: 90210 } };
*      const user2 = { address: { zipCode: 55555 } };
*      const user3 = { name: 'Bob' };
*      const users = [ user1, user2, user3 ];
*      const isFamous = R.pathEq(['address', 'zipCode'], 90210);
*      R.filter(isFamous, users); //=> [ user1 ]
*/

+ 3 other calls in file

t2.js

GitHub: octachrome/t2

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  GAME_OVER: 'game-over',
};


State.getId = R.path(['state', 'id']);


State.eq = R.pathEq(['state', 'id']);


State.lens = R.lensProp('state');


Object.freeze(State);

+ 3 other calls in file

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