: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
# Perform a deep comparison to check if two objects are equal.
atype = typeof(a); btype = typeof(b)
return false if atype isnt btype
# Basic equality test (watch out for coercions).
# One is falsy and the other truthy.
return false if (!a and b) or (a and !b)
# One of them implements an `isEqual()`?
return a.isEqual(b) if a.isEqual
# Check dates' integer values.
return a.getTime() is b.getTime() if _.isDate(a) and _.isDate(b)
return false if _.isNaN(a) and _.isNaN(b)
# Compare regular expressions.
if _.isRegExp(a) and _.isRegExp(b)
return a.source is b.source and
a.ignoreCase is b.ignoreCase and
a.multiline is b.multiline
# If a is not an object by this point, we can't handle it.
return false if atype isnt 'object'
# Check for different array lengths before comparing contents.
return false if a.length and (a.length isnt b.length)
# Nothing else worked, deep compare the contents.
aKeys = _.keys(a); bKeys = _.keys(b)
# Different object sizes?
return false if aKeys.length isnt bKeys.length
# Recursive comparison of contents.
return false for key, val of a when !(key of b) or !_.isEqual(val, b[key])
# Is a given array or object empty?
return obj.length is 0 if _.isArray(obj) or _.isString(obj)
return false for own key of obj
# Is a given value a DOM element?
_.isElement = (obj) -> obj and obj.nodeType is 1
# Is a given value an array?
_.isArray = nativeIsArray or (obj) -> !!(obj and obj.concat and obj.unshift and not obj.callee)
# Is a given variable an arguments object?
_.isArguments = (obj) -> obj and obj.callee
# Is the given value a function?
_.isFunction = (obj) -> !!(obj and obj.constructor and obj.call and obj.apply)
# Is the given value a string?
_.isString = (obj) -> !!(obj is '' or (obj and obj.charCodeAt and obj.substr))
# Is a given value a number?
_.isNumber = (obj) -> (obj is +obj) or toString.call(obj) is '[object Number]'
# Is a given value a boolean?
_.isBoolean = (obj) -> obj is true or obj is false
# Is a given value a Date?
_.isDate = (obj) -> !!(obj and obj.getTimezoneOffset and obj.setUTCFullYear)
# Is the given value a regular expression?
_.isRegExp = (obj) -> !!(obj and obj.exec and (obj.ignoreCase or obj.ignoreCase is false))
# Is the given value NaN -- this one is interesting. `NaN != NaN`, and
# `isNaN(undefined) == true`, so we make sure it's a number first.
_.isNaN = (obj) -> _.isNumber(obj) and window.isNaN(obj)
# Is a given value equal to null?
_.isNull = (obj) -> obj is null
# Is a given variable undefined?
_.isUndefined = (obj) -> typeof obj is 'undefined'
# Run Underscore.js in noConflict mode, returning the `_` variable to its
# previous owner. Returns a reference to the Underscore object.
root._ = previousUnderscore
# Keep the identity function around for default iterators.
_.identity = (value) -> value
# Run a function `n` times.
_.times = (n, iterator, context) ->
iterator.call context, i for i in [0...n]
# Break out of the middle of an iteration.
_.breakLoop = -> throw breaker
# Add your own custom functions to the Underscore object, ensuring that
# they're correctly added to the OOP wrapper as well.
for name in _.functions(obj)
addToWrapper name, _[name] = obj[name]
# Generate a unique integer id (unique within the entire client session).
# Useful for temporary DOM ids.
(prefix or '') + idCounter++
# By default, Underscore uses **ERB**-style template delimiters, change the
# following template settings to use alternative delimiters.
interpolate: /<%=(.+?)%>/g
# JavaScript templating a-la **ERB**, pilfered from John Resig's
# *Secrets of the JavaScript Ninja*, page 83.
# Single-quote fix from Rick Strahl.
# With alterations for arbitrary delimiters, and to preserve whitespace.
_.template = (str, data) ->
endMatch = new RegExp("'(?=[^"+c.end.substr(0, 1)+"]*"+escapeRegExp(c.end)+")","g")
'var p=[],print=function(){p.push.apply(p,arguments);};' +
'with(obj||{}){p.push(\'' +
str.replace(/\r/g, '\\r')
.replace(c.interpolate, "',$1,'")
.split(c.start).join("');")
.split(c.end).join("p.push('") +
if data then fn(data) else fn
_.foldl = _.inject = _.reduce
# If Underscore is called as a function, it returns a wrapped object that
# can be used OO-style. This wrapper holds altered versions of all the
# underscore functions. Wrapped objects may be chained.
# Helper function to continue chaining intermediate results.
if chain then _(obj).chain() else obj
# A method to easily add functions to the OOP wrapper.
addToWrapper = (name, func) ->
wrapper.prototype[name] = ->
args = _.toArray arguments
unshift.call args, this._wrapped
result func.apply(_, args), this._chain
# Add all ofthe Underscore functions to the wrapper object.
# Add all mutator Array functions to the wrapper.
_.each ['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], (name) ->
method = Array.prototype[name]
wrapper.prototype[name] = ->
method.apply(this._wrapped, arguments)
result(this._wrapped, this._chain)
# Add all accessor Array functions to the wrapper.
_.each ['concat', 'join', 'slice'], (name) ->
method = Array.prototype[name]
wrapper.prototype[name] = ->
result(method.apply(this._wrapped, arguments), this._chain)
# Start chaining a wrapped Underscore object.
# Extracts the result from a wrapped and chained object.
wrapper::value = -> this._wrapped
var editor = CodeMirror.fromTextArea(document.getElementById("code"), {});
<p><strong>MIME types defined:</strong> <code>text/x-coffeescript</code>.</p>
<p>The CoffeeScript mode was written by Jeff Pickhardt.</p>