cafe-grader-web Files · node_modules/is-callable/index.js

cafe-grader-web

Location: cafe-grader-web/node_modules/is-callable/index.js

Commit Description:

Merge pull request #30 from noppakorn/golden-submit-button...

Commit Description:

Merge pull request #30 from noppakorn/golden-submit-button add golden submit button

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r830:534e06ae3cce default

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r789:8cd7e8db7e38 default

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                    node_modules/is-callable/index.js
                
             | 37 lines
             | 1.1 KiB
             | application/javascript 
             | JavascriptLexer
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      'use strict';

      var fnToStr = Function.prototype.toString;

      var constructorRegex = /^\s*class\b/;

      var isES6ClassFn = function isES6ClassFunction(value) {

      	try {

      		var fnStr = fnToStr.call(value);

      		return constructorRegex.test(fnStr);

      	} catch (e) {

      		return false; // not a function

      	}

      };

      var tryFunctionObject = function tryFunctionToStr(value) {

      	try {

      		if (isES6ClassFn(value)) { return false; }

      		fnToStr.call(value);

      		return true;

      	} catch (e) {

      		return false;

      	}

      };

      var toStr = Object.prototype.toString;

      var fnClass = '[object Function]';

      var genClass = '[object GeneratorFunction]';

      var hasToStringTag = typeof Symbol === 'function' && typeof Symbol.toStringTag === 'symbol';

      module.exports = function isCallable(value) {

      	if (!value) { return false; }

      	if (typeof value !== 'function' && typeof value !== 'object') { return false; }

      	if (typeof value === 'function' && !value.prototype) { return true; }

      	if (hasToStringTag) { return tryFunctionObject(value); }

      	if (isES6ClassFn(value)) { return false; }

      	var strClass = toStr.call(value);

      	return strClass === fnClass || strClass === genClass;

      };

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				'use strict';

				var fnToStr = Function.prototype.toString;

				var constructorRegex = /^\s*class\b/;
				var isES6ClassFn = function isES6ClassFunction(value) {
				try {
				var fnStr = fnToStr.call(value);
				return constructorRegex.test(fnStr);
				} catch (e) {
				return false; // not a function
				}
				};

				var tryFunctionObject = function tryFunctionToStr(value) {
				try {
				if (isES6ClassFn(value)) { return false; }
				fnToStr.call(value);
				return true;
				} catch (e) {
				return false;
				}
				};
				var toStr = Object.prototype.toString;
				var fnClass = '[object Function]';
				var genClass = '[object GeneratorFunction]';
				var hasToStringTag = typeof Symbol === 'function' && typeof Symbol.toStringTag === 'symbol';

				module.exports = function isCallable(value) {
				if (!value) { return false; }
				if (typeof value !== 'function' && typeof value !== 'object') { return false; }
				if (typeof value === 'function' && !value.prototype) { return true; }
				if (hasToStringTag) { return tryFunctionObject(value); }
				if (isES6ClassFn(value)) { return false; }
				var strClass = toStr.call(value);
				return strClass === fnClass \|\| strClass === genClass;
				};