diff options
Diffstat (limited to 'tools/eslint/node_modules/js-yaml/lib/js-yaml/common.js')
-rw-r--r-- | tools/eslint/node_modules/js-yaml/lib/js-yaml/common.js | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/tools/eslint/node_modules/js-yaml/lib/js-yaml/common.js b/tools/eslint/node_modules/js-yaml/lib/js-yaml/common.js new file mode 100644 index 0000000000..197eb248a0 --- /dev/null +++ b/tools/eslint/node_modules/js-yaml/lib/js-yaml/common.js @@ -0,0 +1,61 @@ +'use strict'; + + +function isNothing(subject) { + return (typeof subject === 'undefined') || (null === subject); +} + + +function isObject(subject) { + return (typeof subject === 'object') && (null !== subject); +} + + +function toArray(sequence) { + if (Array.isArray(sequence)) { + return sequence; + } else if (isNothing(sequence)) { + return []; + } + return [ sequence ]; +} + + +function extend(target, source) { + var index, length, key, sourceKeys; + + if (source) { + sourceKeys = Object.keys(source); + + for (index = 0, length = sourceKeys.length; index < length; index += 1) { + key = sourceKeys[index]; + target[key] = source[key]; + } + } + + return target; +} + + +function repeat(string, count) { + var result = '', cycle; + + for (cycle = 0; cycle < count; cycle += 1) { + result += string; + } + + return result; +} + + +function isNegativeZero(number) { + return (0 === number) && (Number.NEGATIVE_INFINITY === 1 / number); +} + + +module.exports.isNothing = isNothing; +module.exports.isObject = isObject; +module.exports.toArray = toArray; +module.exports.repeat = repeat; +module.exports.isNegativeZero = isNegativeZero; +module.exports.extend = extend; |