How to use the cordova/channel.onDOMContentLoaded function in cordova

}
if (!window.console.warn) {
    window.console.warn = function(msg) {
        this.log("warn: " + msg);
    };
}

// Register pause, resume and deviceready channels as events on document.
channel.onPause = cordova.addDocumentEventHandler('pause');
channel.onResume = cordova.addDocumentEventHandler('resume');
channel.onActivated = cordova.addDocumentEventHandler('activated');
channel.onDeviceReady = cordova.addStickyDocumentEventHandler('deviceready');

// Listen for DOMContentLoaded and notify our channel subscribers.
if (document.readyState == 'complete' || document.readyState == 'interactive') {
    channel.onDOMContentLoaded.fire();
} else {
    document.addEventListener('DOMContentLoaded', function() {
        channel.onDOMContentLoaded.fire();
    }, false);
}

// _nativeReady is global variable that the native side can set
// to signify that the native code is ready. It is a global since
// it may be called before any cordova JS is ready.
if (window._nativeReady) {
    channel.onNativeReady.fire();
}

// Call the platform-specific initialization.
platform.bootstrap && platform.bootstrap();

}
if (!window.console.warn) {
    window.console.warn = function(msg) {
        this.log("warn: " + msg);
    };
}

// Register pause, resume and deviceready channels as events on document.
channel.onPause = cordova.addDocumentEventHandler('pause');
channel.onResume = cordova.addDocumentEventHandler('resume');
channel.onActivated = cordova.addDocumentEventHandler('activated');
channel.onDeviceReady = cordova.addStickyDocumentEventHandler('deviceready');

// Listen for DOMContentLoaded and notify our channel subscribers.
if (document.readyState == 'complete' || document.readyState == 'interactive') {
    channel.onDOMContentLoaded.fire();
} else {
    document.addEventListener('DOMContentLoaded', function() {
        channel.onDOMContentLoaded.fire();
    }, false);
}

// _nativeReady is global variable that the native side can set
// to signify that the native code is ready. It is a global since
// it may be called before any cordova JS is ready.
if (window._nativeReady) {
    channel.onNativeReady.fire();
}

// Call the platform-specific initialization.
platform.bootstrap && platform.bootstrap();

}
if (!window.console.warn) {
    window.console.warn = function (msg) {
        this.log('warn: ' + msg);
    };
}

// Register pause, resume and deviceready channels as events on document.
channel.onPause = cordova.addDocumentEventHandler('pause');
channel.onResume = cordova.addDocumentEventHandler('resume');
channel.onActivated = cordova.addDocumentEventHandler('activated');
channel.onDeviceReady = cordova.addStickyDocumentEventHandler('deviceready');

// Listen for DOMContentLoaded and notify our channel subscribers.
if (document.readyState === 'complete' || document.readyState === 'interactive') {
    channel.onDOMContentLoaded.fire();
} else {
    document.addEventListener('DOMContentLoaded', function () {
        channel.onDOMContentLoaded.fire();
    }, false);
}

// _nativeReady is global variable that the native side can set
// to signify that the native code is ready. It is a global since
// it may be called before any cordova JS is ready.
if (window._nativeReady) {
    channel.onNativeReady.fire();
}

// Call the platform-specific initialization.
platform.bootstrap && platform.bootstrap();

};
}
if (!window.console.warn) {
    window.console.warn = function(msg) {
        this.log("warn: " + msg);
    };
}

// Register pause, resume and deviceready channels as events on document.
channel.onPause = cordova.addDocumentEventHandler('pause');
channel.onResume = cordova.addDocumentEventHandler('resume');
channel.onDeviceReady = cordova.addStickyDocumentEventHandler('deviceready');

// Listen for DOMContentLoaded and notify our channel subscribers.
if (document.readyState == 'complete' || document.readyState == 'interactive') {
    channel.onDOMContentLoaded.fire();
} else {
    document.addEventListener('DOMContentLoaded', function() {
        channel.onDOMContentLoaded.fire();
    }, false);
}

// _nativeReady is global variable that the native side can set
// to signify that the native code is ready. It is a global since
// it may be called before any cordova JS is ready.
if (window._nativeReady) {
    channel.onNativeReady.fire();
}

// Call the platform-specific initialization.
platform.bootstrap && platform.bootstrap();

}
if (!window.console.warn) {
    window.console.warn = function(msg) {
        this.log("warn: " + msg);
    };
}

// Register pause, resume and deviceready channels as events on document.
channel.onPause = cordova.addDocumentEventHandler('pause');
channel.onResume = cordova.addDocumentEventHandler('resume');
channel.onActivated = cordova.addDocumentEventHandler('activated');
channel.onDeviceReady = cordova.addStickyDocumentEventHandler('deviceready');

// Listen for DOMContentLoaded and notify our channel subscribers.
if (document.readyState == 'complete' || document.readyState == 'interactive') {
    channel.onDOMContentLoaded.fire();
} else {
    document.addEventListener('DOMContentLoaded', function() {
        channel.onDOMContentLoaded.fire();
    }, false);
}

// _nativeReady is global variable that the native side can set
// to signify that the native code is ready. It is a global since
// it may be called before any cordova JS is ready.
if (window._nativeReady) {
    channel.onNativeReady.fire();
}

// Call the platform-specific initialization.
platform.bootstrap && platform.bootstrap();

document.addEventListener('DOMContentLoaded', function() {
        channel.onDOMContentLoaded.fire();
    }, false);
}

document.addEventListener('DOMContentLoaded', function() {
        channel.onDOMContentLoaded.fire();
    }, false);
}

document.addEventListener('DOMContentLoaded', function() {
        channel.onDOMContentLoaded.fire();
    }, false);
}

document.addEventListener('DOMContentLoaded', function() {
        channel.onDOMContentLoaded.fire();
    }, false);
}

document.addEventListener('DOMContentLoaded', function() {
        channel.onDOMContentLoaded.fire();
    }, false);
}