ignore-argument

Like Function.prototype.bind / partial application to ignore arguments.

Available on NPM and bower under name ignore-argument.

Sometimes you need to create temp functions just to ignore some arguments

function foo(a, b) { ... }
function bar(cb) {
  // calls cb with 3 arguments!
  cb('foo', 'a', 'b');
}
bar(foo); // does not work, throws an error
bar(function (first, a, b) {
    // first argument is ignored
    return foo(a, b);
});

ignore-argument allows skipping (ignoring) arguments by position. Same example as above

bar(ignoreArgument(foo, true)); // ignored first argument to foo

You can ignore multiple arguments. For example to ignore first and third:

function bar(cb) {
  // calls cb with 4 arguments!
  cb('foo', 'a', 'bar', 'b');
}
// ignore first and third arguments
bar(ignoreArgument(foo, true, false, true));

You can also quickly solve the Madness of JavaScript problem.

['1', '2', '3'].map(parseInt); // [1, NaN, NaN]
['1', '2', '3'].map(ignoreArgument(parseInt, false, true)); // [1, 2, 3]

Related projects:

• spots
• functional-pipeline
• heroin

Read about functional utilities

• Point-free is not pointless
• Selective application
• My favorite functional adaptors

Small print

Author: Gleb Bahmutov © 2015

• @bahmutov
• glebbahmutov.com
• blog

License: MIT - do anything with the code, but don't blame me if it does not work.

Spread the word: tweet, star on github, etc.

Support: if you find any problems with this module, email / tweet / open issue on Github

MIT License

Copyright (c) 2015 Gleb Bahmutov

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.