debugger

Оператор debugger запускає будь-яку доступну налагоджувальну функціональність, наприклад, встановлення точки переривання. Якщо налагоджувальна функціональність недоступна, цей оператор не матиме ефекту.

Синтаксис

debugger;

Приклади

Наступний приклад демонструє код, у який був вставлений оператор debugger, щоб запустити налагоджувач (якщо він є), коли викликається функція.

function potentiallyBuggyCode() {
    debugger;
    // потенційно помилковий код, через який треба пройти, дослідити і т.д.
}

Коли викликається налагоджувач, виконання призупиняється на операторі debugger. Це як точка переривання у коді скрипта.

Paused at a debugger statement.

Специфікації

Специфікація Статус Коментар
ECMAScript Latest Draft (ECMA-262)
The definition of 'Debugger statement' in that specification.		 Draft
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Debugger statement' in that specification.		 Standard
ECMAScript 5.1 (ECMA-262)
The definition of 'Debugger statement' in that specification.		 Standard Початкове визначення
ECMAScript 3rd Edition (ECMA-262)
The definition of 'Debugger statement' in that specification.		 Standard
ECMAScript 1st Edition (ECMA-262)
The definition of 'Debugger statement' in that specification.		 Standard Лише згаданий як зарезервоване слово.

Сумісність з веб-переглядачами

Update compatibility data on GitHub
DesktopMobileServer
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung InternetNode.js
debuggerChrome Full support 5Edge Full support 12Firefox Full support 1IE Full support 4Opera Full support YesSafari Full support YesWebView Android Full support 1Chrome Android Full support 18Firefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support 1.0nodejs Full support Yes

Legend

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Full support

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