Show More
Commit Description:
fix wrong merge
Commit Description:
fix wrong merge
References:
File last commit:
Show/Diff file:
Action:
node_modules/util-deprecate/browser.js
| 67 lines
| 1.6 KiB
| application/javascript
| JavascriptLexer
|
r789 | ||||
/** | ||||
* Module exports. | ||||
*/ | ||||
module.exports = deprecate; | ||||
/** | ||||
* Mark that a method should not be used. | ||||
* Returns a modified function which warns once by default. | ||||
* | ||||
* If `localStorage.noDeprecation = true` is set, then it is a no-op. | ||||
* | ||||
* If `localStorage.throwDeprecation = true` is set, then deprecated functions | ||||
* will throw an Error when invoked. | ||||
* | ||||
* If `localStorage.traceDeprecation = true` is set, then deprecated functions | ||||
* will invoke `console.trace()` instead of `console.error()`. | ||||
* | ||||
* @param {Function} fn - the function to deprecate | ||||
* @param {String} msg - the string to print to the console when `fn` is invoked | ||||
* @returns {Function} a new "deprecated" version of `fn` | ||||
* @api public | ||||
*/ | ||||
function deprecate (fn, msg) { | ||||
if (config('noDeprecation')) { | ||||
return fn; | ||||
} | ||||
var warned = false; | ||||
function deprecated() { | ||||
if (!warned) { | ||||
if (config('throwDeprecation')) { | ||||
throw new Error(msg); | ||||
} else if (config('traceDeprecation')) { | ||||
console.trace(msg); | ||||
} else { | ||||
console.warn(msg); | ||||
} | ||||
warned = true; | ||||
} | ||||
return fn.apply(this, arguments); | ||||
} | ||||
return deprecated; | ||||
} | ||||
/** | ||||
* Checks `localStorage` for boolean values for the given `name`. | ||||
* | ||||
* @param {String} name | ||||
* @returns {Boolean} | ||||
* @api private | ||||
*/ | ||||
function config (name) { | ||||
// accessing global.localStorage can trigger a DOMException in sandboxed iframes | ||||
try { | ||||
if (!global.localStorage) return false; | ||||
} catch (_) { | ||||
return false; | ||||
} | ||||
var val = global.localStorage[name]; | ||||
if (null == val) return false; | ||||
return String(val).toLowerCase() === 'true'; | ||||
} | ||||