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Diffstat (limited to 'node_modules/is-number/index.js')
-rw-r--r-- | node_modules/is-number/index.js | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/node_modules/is-number/index.js b/node_modules/is-number/index.js new file mode 100644 index 000000000..96ec66d5e --- /dev/null +++ b/node_modules/is-number/index.js @@ -0,0 +1,19 @@ +/*! + * is-number <https://github.com/jonschlinkert/is-number> + * + * Copyright (c) 2014-2015, Jon Schlinkert. + * Licensed under the MIT License. + */ + +'use strict'; + +var typeOf = require('kind-of'); + +module.exports = function isNumber(num) { + var type = typeOf(num); + if (type !== 'number' && type !== 'string') { + return false; + } + var n = +num; + return (n - n + 1) >= 0 && num !== ''; +}; |