58 lines
1.2 KiB
JavaScript
58 lines
1.2 KiB
JavaScript
var fs = require('fs');
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var path = require('path');
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function matchObject(item, str) {
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return Object.prototype.toString.call(item)
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=== '[object ' + str + ']';
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}
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var is = {
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nil: function(item) {
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return item == null;
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},
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array: function(item) {
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return Array.isArray(item);
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},
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emptyObject: function(item) {
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for (var key in item) {
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return false;
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}
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return true;
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},
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buffer: function(item) {
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return Buffer.isBuffer(item);
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},
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regExp: function(item) {
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return matchObject(item, 'RegExp');
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},
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string: function(item) {
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return matchObject(item, 'String');
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},
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func: function(item) {
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return typeof item === 'function';
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},
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number: function(item) {
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return matchObject(item, 'Number');
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},
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exists: function(name) {
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return fs.existsSync(name);
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},
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file: function(name) {
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return is.exists(name)
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? fs.statSync(name).isFile() : false;
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},
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sameFile: function(a, b) {
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return path.resolve(a) === path.resolve(b);
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},
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directory: function(name) {
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return is.exists(name)
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? fs.statSync(name).isDirectory() : false;
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},
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symbolicLink: function(name) {
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return is.exists(name)
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? fs.lstatSync(name).isSymbolicLink() : false;
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}
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};
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module.exports = is;
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