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  1. {"ast":null,"code":"\"use strict\";\n\nvar _interopRequireDefault = require(\"@babel/runtime/helpers/interopRequireDefault\");\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.capitalize = capitalize;\nexports.contains = contains;\nexports.findIndex = findIndex;\nexports.find = find;\nexports.createChainedFunction = createChainedFunction;\n\nvar _typeof2 = _interopRequireDefault(require(\"@babel/runtime/helpers/typeof\"));\n\nvar _warning = _interopRequireDefault(require(\"warning\")); // It should to be noted that this function isn't equivalent to `text-transform: capitalize`.\n//\n// A strict capitalization should uppercase the first letter of each word a the sentence.\n// We only handle the first word.\n\n\nfunction capitalize(string) {\n if (process.env.NODE_ENV !== 'production' && typeof string !== 'string') {\n throw new Error('Material-UI: capitalize(string) expects a string argument.');\n }\n\n return string.charAt(0).toUpperCase() + string.slice(1);\n}\n\nfunction contains(obj, pred) {\n return Object.keys(pred).every(function (key) {\n return obj.hasOwnProperty(key) && obj[key] === pred[key];\n });\n}\n\nfunction findIndex(arr, pred) {\n var predType = (0, _typeof2.default)(pred);\n\n for (var i = 0; i < arr.length; i += 1) {\n if (predType === 'function' && !!pred(arr[i], i, arr) === true) {\n return i;\n }\n\n if (predType === 'object' && contains(arr[i], pred)) {\n return i;\n }\n\n if (['string', 'number', 'boolean'].indexOf(predType) !== -1) {\n return arr.indexOf(pred);\n }\n }\n\n return -1;\n}\n\nfunction find(arr, pred) {\n var index = findIndex(arr, pred);\n return index > -1 ? arr[index] : undefined;\n}\n/**\n * Safe chained function\n *\n * Will only create a new function if needed,\n * otherwise will pass back existing functions or null.\n *\n * @param {function} functions to chain\n * @returns {function|null}\n */\n\n\nfunction createChainedFunction() {\n for (var _len = arguments.length, funcs = new Array(_len), _key = 0; _key < _len; _key++) {\n funcs[_key] = arguments[_key];\n }\n\n return funcs.reduce(function (acc, func) {\n if (func == null) {\n return acc;\n }\n\n process.env.NODE_ENV !== \"production\" ? (0, _warning.default)(typeof func === 'function', 'Material-UI: invalid Argument Type, must only provide functions, undefined, or null.') : void 0;\n return function chainedFunction() {\n for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n args[_key2] = arguments[_key2];\n }\n\n acc.apply(this, args);\n func.apply(this, args);\n };\n }, function () {});\n}","map":null,"metadata":{},"sourceType":"script"}